Since this does not have to do with the actual teaching process, it doesn't really belong in the Teaching section. I don't know where exactly to put a question like this. Anyway...
Every summer, my piano teacher goes away to teach in Aspen. This year, he's given me a choice between two teachers to work with over the summer. I'll boil this down to basics:
Teacher A is a superb pianist, but has little experience teaching.
Teacher B has taught for decades, but is not nearly as skilled a pianist as Teacher A.
This summer I have quite a bit of demanding repertoire that will require both time and patience (which Teacher B would be better at) but also I want to make sure I handle the mechanique and the musical aspects of the works correctly (which Teacher A would be better at)
I have no idea which one to choose. I'm not asking you guys to decide for me, as ultimately that is my decision to make alone, but I would appreciate hearing recommendations, past experiences with this type of dilemma, similar situations, etc., if there are any.

As always, thanks in advance.
Phil