Yeah, Chompers are the only enemy that maybe I have problems with at the moment -- I'm probably overly tolerant of "annoying" enemies in general, though, for some reason. I guess I kind of just like some enemies to be jerks, heh.
As for Anklebiters, we've discussed these quite a bit internally, but personally I've just never had any problems with them. If I'm at distance from them, I would just outrange them, if I get caught close to them I would stand right next to them. I don't recall them ever being in a position that I found frustrating. I'm not saying that can't happen, but I just haven't experienced it (or can't remember). In any case, these should be returning once they are re-categorized, so they will be back at some point, and with no possible way of being awkwardly positioned. Hurrah!