Transition Dirtbag, Kona Roast 2002 and specialized BMX
What type of terrain are you looking at?
Personally I just tried a Gary fisher and really enjoyed the genesis geometry. Maybe because of how similar it is to a fr geometry and the climbing was amazing. I couldn't believe the geometry improved climbing quite that much.
alo have you tested any? What did you prefer? Or are you just starting with a blank slate completely?