Mr Mime can reflext tank fire and shit though, Mr Mime could probably crush it inside a force field. Plus it can take hits from shit that can turn city blocks into craters that one time. Mime wins 19 out of 20.

Mr.Mime with the clutch Protect, Psychic and Dazzling Gleam

>>26907047
Mr. Mime is part fairy type, and T-Rexes are dragon type. So my money is on Mr. Mime.

>>26907154
Tyrantrum is part Dragon, Tyranitar (as shitty a T-Rex as it is) is part Dark.

Granted, both are weak to fairy, but it goes to show T-Rex doesn't automatically equal dragon. It MIGHT automatically equal Rock, though.