Everyone should go on to the Blizz forums and advertise SEN and its non-existent no-censorship policy.

Also, I didn't watch the SC1 version (I think).

Probert the Probe in SC2 wasn't really too hard to follow thanks to the fact that all the characters have different models/portraits (for the most part). However, I didn't really notice any of the "blinky" highlighting from SC1 that made it 100% obvious which unit ("who") was talking, so, IMO, SC1 cinematics are ultimately easier to follow.