I do like the first one the best, but I'd probably only use it with a bulkier character(because the leg comes back slowly). The second seems very animated, almost cartoony. I don't really have a critique for the third one, sorry. I guess it just depends on what kind of style you're tryIng to work with. I can't really help any farthur than that right now, because it's late, I'm tiered, and I'm only on my phone, not an actual computer, but I'll look into it more tomorrow if I can.