How to tell which game is the best?

[mtgordon]

How do you tell which game you should be playing? I’m playing full ring limit tables and as I move up in limits the competition gets harder (duh). In turn this should make my bb/100 go down; but since the bb are larger it might be worth it (duh again). The problem comes in when I’m bankrolled for various limits but haven’t played enough hands at either to know what my winrate is. Is there a good way to tell which limit I should be playing?

Do you move up when you feel that you can beat the next level or when your bankroll is large enough? If your main goal is to make as much money as you can it seems like it's more complicated than that but I certainly don't have it figured out.

Any (constructive) input welcome.