A vs B

I'm still working on my postdoc decision. In my mind I have thought through pro's and con's of each location, but haven't written them down anywhere yet. I suppose a good place as any would be here.

Location A - where I currently am (PhD)

Pro's
-It would be easy to continue here - I don't have to change plans or move, and my PI is already pushing through paperwork on appointments
-I would get to write grants. I will be submitting one (unless I decide to leave before then) within a month. A second one, that has been slowly reaching ready status over the last 6+ months could be submitted in August to a different funding agency. In a perfect world, I'd get to choose between the two grants. Either way, I'd have the experience of having written and submitted my own (postdoc) grants.
-I would continue the work I did for my PhD. This is both a positive and a negative. There is a definite need and opportunity, which is nice to take advantage of. It would be nice to do one study, which was going to be part of my PhD but didn't move fast enough for me (factors outside my control) so I went in a different direction.
-With that, my PI has pushed for me to work on thinking about and putting together grants. I'm sure this would continue, even if the first I submit was lucky enough to get funded.
-I continue to be part of an excellent collaborative research network. This network includes researchers from the university and 3 nearby hospitals. My program is probably the top in the country in our sub-field, and this network is a major contributor.
-I would have the opportunity for plenty of non-research training. This could include teaching an undergraduate lab, attending excellent seminars put on by our research center, and shadowing clinical collaborators.
-There are clear future grants (after the postdoc work) that could be written, which in conversations with my PI are things I could take with me to my next job (assuming that location has the facilities/collaborations available to work with).
-We have a good lab dynamic.
-Experiments for one of the potential research thrusts can happen at a quick pace.

Con's
-I probably wouldn't be learning many new research skills, basically doing the same type of work as for my doctoral research - just in different models.
-I would be publishing with the same PI. Some potential work would add in a collaboration from one of the nearby hospitals, but I wouldn't be separating from my advisor much.
-I would be pretty much my own research silo, within the lab, as during my doctoral studies. So, I'd be first author on several papers, but may not have the chance to also be 2nd author on some other people's projects.
-In continuing my doctoral research, I would be focusing on work that doesn't appear to be a major priority for my PI. His major thrusts going forward are in two related areas that he has current funding for. By keeping me around, he gets to continue with this area, but I get the vibe from activities that it isn't as high of a priority. (Thus the "pro" of being able to take it with me)
-There's the potential of struggling for funding. My PI has said he'll make sure that I'm covered, which I know will be the case. But, if the grant or two that I may put in this summer aren't funded, then any research I do wouldn't be funded directly to me/the project. It'd probably be skimming from other areas.
-I'm not very confident that the doctoral research project which was pushed out of my PhD and would be a primary focus now will ever get started. Due to other lab priorities and the way things are set up, I often feel out of the loop on this. I have complained several times, but to no strong avail. After having this project drag on for several years, it sounds like another researcher somewhere else may be stealing our thunder and publishing soon. While I'm sure that our study will look at things they didn't, it will be using the same mechanism, which is unfortunate. LOST OPPORTUNITY!

Location B - a new place I'm considering

Pro's
-I would be expanding my boundaries by joining a new lab.
-I would be learning new research skills, which would compliment the skills I used in my doctoral work.
-There is an easy-going dynamic in this lab also, as the PI is also young.
-I would be more of a 2nd lieutenant in the lab, working with one or two grad student projects, as interface with PI. This would give me collaborative opportunities - as the 2nd author on some projects.
-I would have the opportunity to be involved with new clinical study, possibly being primary researcher as none of the grad students would be involved.
-I would have the possibility of doing a project crossing the areas of my doctoral work and this lab, collaborating with the current postdoc who also worked in my doctoral area for his doctorate. This potential project is something the PI would support and would definitely allow one or both of us to take with us when we left.
-The position is a funded postdoc, as supported by his R01, for several years. Although the specific funding is for a project which I am interested in, I wouldn't be held to only (or at all) working on it.
-There is the potential to split time between A and B. (within several hour driving distance) If this were to happen, the best would probably be 80% at B so that I could reap the benefits of being at a new location. Once a month or so I could return to A to perform a clinical experiment (if that ever got going). Thanks to modern technology, I could do all communication via phone and email. Both PIs are amenable to some sort of time-sharing. I'm sure each would like to have 100% of me, especially given logistics of cost-sharing. There's also the risk of spreading myself too thin. Thus, if I did it, I think having 1 study here that is spread out would be best. Plus on this 1 study, it is already set up - all equipment gathered and regulatory approval obtained. Thus it is just a matter of getting the subjects, something I haven't been involved with.

Con's
-I would have to deal with all the complications of moving (an eventuality either way).
-I'm not sure I would get as many non-research training opportunities. The PI has a secondary appointment in my field's department. He said I could probably do some teaching if I wanted to, but I'd have to do more legwork to figure out the good opportunities and to get involved.
-Grant writing would be less of a priority. I may have to do more work on the side to think about what I'd want to do in the future. If the other postdoc and I did our collaborative project, we would have the chance to put together a grant on that.
-So far, they don't have as quick of a turn around on experiments. Their current series has been postponed several times.
-I wouldn't be as involved in a large collaborative network. There are two other labs that this PI is heavily involved with (moreso than any close labs for my current lab) but there is not the large network of researchers like at my current location. I think I could get similar exposure to related fields, but not as much continued broad exposure to my sub-field.

So, that's a pretty good listing. I'm sure there are other factors that I'm forgetting for the moment. I'll have to update this if I think of any. And, there's one other major factor - a non-career factor. It'd be pretty difficult to continue the relationship I am in over long-distance. So, something would have to be figured out there, if I were to move. We've talked about it some. If it comes down to me not being able to make up my mind, whether for pro/con lists above or for relationship reasons, then I'll just stay where I'm at.

Hmmm...back to the thinking board and back to some work...