RE: edge, yak, extra, cap....?
Well here is a break down from my point of view....
Edge.. very nice tumbles, KE spins are very fast, blenders very violent - lacks precision for things outside of 3D
Cap - awesome harriers / rolling harriers, loves inverted as well - lacks precision
Yak - pretty much great all the way around, probably the fastest roll rate - does 3D and precision nicely
Extra - good 3D - good everything as well as the Yak - I lean towards Extras and have owned all 4 and flown everything from GP - comp arf - to Carden
If you are only worried about 3D I would prob go with an Edge.