First and foremost for me is builders choice!
I really have not seen one that I don't like, or would not like to own and shoot. Aside from the poorly contrasted and ugly color combos, but even some of those, in the right design, peak my interest. I like them all, but... If I could choose, it would be something that I don't already have.
In no particular order: Hill style- normal or reverse handle, a tri-lam, any selfbow, anything Osage, a static tip curve, short bows of any kind, any two piece, anything with skins, fancy veneers, not a huge fan of carbon backs (but in the right combo they look good), horse bows and the like, or anything my bowyer builds best or wants to build in the 44-53#@28" range, with 48-52# preferred.
Wow... Probly would've been easier to say that most of my bows are 58-60" d/r longbows. Lol. But I'd even love another one of those! As I said, bowyers choice.