You want both numbers (pot size / flop%) to be high ideally.

I started only considering flop%, then I went to potsize only -- but I think it's best to take both into consideration.

I'll take a 15BB pot / 28% flop table over a 20BB avg pot / 18% flop table, just like I'll take a 25BB avg pot / 24% flop table over an 8BB / 30% flop table.