There are monsters in monster vault that dominate IIRC, the succubus being the obvious contender. There are almost monsters in MM3 that can hilariously automatically dominate you if you dominate them (and they are unaffected by your dominate). The Star Spawn of Ulban or whatever it is I think is the culprit there.
In saying that, there are far less creatures that spam dominate now than before. It's also nowhere near as important for making challenging encounters at epic.
In saying that, there are far less creatures that spam dominate now than before. It's also nowhere near as important for making challenging encounters at epic.