[evanperryg]

I'll restate what I've said in many threads like this. I don't care how your robot moves, as long as it gets the job done well. The drivetrain is one aspect of the whole that cannot be isolated as the only factor of success. Is the drivetrain important? Yes, extremely. Is it the only important thing? No. Good mechanisms make a good robot, and the base is not the only mechanism.
Personally, I don't like mecanum because I feel it's too easy to bully mecanum robots, especially in a game where alignment is key. However, my team has been in a situation where, as the 8th seed alliance captain, the 2 best remaining robots were both mecanum. (this was 2014, by the way) Did we care? No. We picked them because they were the best, and they fit our strategic goals. What matters is that you're completing tasks consistently and quickly, regardless of what kinds of wheels help you do that.

Tl;dr: I don't care if you use hot dogs for wheels. If you're scoring points, and you fit the strategy, it's fine.