I often have the issue where I throw a head kick but it comes out as a body kick. I get that this is usually due to range, however. I know this happens with some other strikes too, where depending on the range, it will change it into something else. I'd imagine that this is partially why some people feel the controls are unresponsive.
I feel that the striking feels way better than UFC 3. Not sure exactly why. Maybe it's the reduced input delay, maybe it's something else. Either way, it's better. But it also still does feel quite unresponsive/clunky. The lighter weight classes feel way more responsive though, so I feel that maybe it has something to do with what you guys have implemented there in regards to different weight classes feeling different. I definitely agree with the sentiment that it often feels impossible to simply react to the strikes thrown by an opponent, but rather you have to almost predict what they're going to do. But even then, that probably has something to do with the RPM tech. The game feels much more responsive when you stand still and throw strikes. It's when you try to move and strike that suddenly it feels as though everything you're doing is slightly delayed.