Size does seem to be the main factor for us. All the other poodle qualities (energy level, exercise need, good with cats, and light on the drooling/shedding/smelling) are perfect for us. After dog-sitting a friend's lab for several days, we've decided that we would like something a little smaller than that. We're currently looking for something between miniture and standard, probably around 17-18". A poodle of that size will also be quite a bit less bulky than a lab.
We've done a bunch of internet searching and finding someone breeding poodles of this size seems hard enough, let alone someone within reasonable driving distance. Looks like we may end up hopping on a plane for a visit. Right now our best prospect is Karbit, which seems to be pretty respected here.