OK.
Again, if real money is on the line, I'd think the less intoxication, the better.
But if this is more penny-ante/for fun, and the goal is to be smoking THROUGH the tourney, you'll want something low potency. Otherwise you'll quickly find yourself incapacitated and totally unable to play. (Maybe that's the goal, but the way you posted, it sounds like it isn't).
Any indica is out, because you'll be stupefied/couchlocked.
So I think what you want is a lower potency pure sativa landrace. The goal is to get great flavor, nice up high, but be weak enough that you can puff on it for a while without being "destroyed". Columbian could work, I guess, if you have access to that. I'm thinking something like a Thai or even a nice private grow of one of the Mexican commercial "schwagg" lines for something not overwhelmingly potent.