Aururos has Ice/Rock type. OU is not a given because it has a kinda possibly cool move, it has to REALLY work. --- I'm an Atheist, and I'm damn proud of it. If that offends you for whatever reason, shoot me a PM and I'll correct your misconception.
Aurorus would need to get a LOT of stuff to make it anywhere near UU, let alone OU. It's quad weak to the two best priority moves in the game, one of which is held by a lot of pokemon, the other happens to be held by Scizor. It just ain't happening.
If Tyrantrum has really good stats, and we're talking REALLY good stats, MAYBE. It's still weak to Mach Punch but it has better chance that Auroros. I don't expect either of them to ever see the light of day in competitive play. --- Official Scrafty Of The Black And White Clan. Official Lorelei of the BW 2 Boards. Official Beheeyem of the X/Y Boards.