Here is my take on it (basically fits what Scott said). If the game is generally pronounced with that word, then it should be there. Ill use the Hawx game for example. If its normally called Tom Clancy's Hawx, it should at least have the Tom Clancy part in the alternate title. Tony Hawk games almost always are pronounced with his name on them so that is how they should be filed.
Disney games are, almost without fail, said without mentioning the word Disney so we should remove the Disney part from the main tag. If you want to add Disney to the alternate title, do so.
If you guys get bored and want to send in edits on these, Ill approve the changes.