1) AJs, KQs, 99 with many (and I mean MANY) callers.

2) AQs with many (and I mean MANY) callers. Cap everything else if you are going to play

3) AA-QQ only.

If you have to ask how many callers is MANY, then there arent enough callers for you to cold call in that hand (which means its going to blatently obvious you should call).