To start with, many people are complaining about new profiles being made for the purpose of winning. I don't care one way or another if the person wants to play the same games again, let them. But to combat this, why not impose a rule that current members are not aloud to use a profile other than their original for competitions? Or make a rule that it must have been created at least so many weeks or months before the competition?
Then there are the arguments on gamesaves and the like. These are harder to prove, unless you have Mozilla Firefox and the Timestamp program. However, based on the gamesavers thread, I would say many agree that this needs addressed. Also, it should be indicated that the gamerscore should only be counted if done on a 360, this is XBOXamerica after all, not PCamerica.
Some people are complaining about 2K6 games being allowed, but I don't see the problem with them. Yes they are extremely easy, but how many of you haven't played them for the cheap completion, as well as Avatar? Yes they have sliders making them super easy, but at one point or another, we have all played them, that's why they're waffles.
Anyways, feel free to add/dispute/agree with what I have here, so we may eventually fix what everyone at one point or another feels is wrong with the competitions.
EDIT: Of course these would take effect in future competitions, not the ones already started.