Haven't met a gig 2 single ported 15's couldn't handle. But, I am NOT a 10" speaker fan. I prefer old school to new, and like the "slower" attack of the larger driver, sans "tweeter."
I started my pro career with the Ampeg V-9 SVT w/ 8x10 "fridge" cab. However, my favorite speaker cabinet is supposed to be the worst thing you could possibly have, and according to most respondents here, shouldn't work because it is too small!!
Lots of opinions here... Listen to every cabinet possible, at your volume level. Let your ears decide. If you can't crank it in the store, ask to take it to rehearsal. If you aren't allowed, PASS, and go to the next store. Store bought cabinets are far too expensive to purchase without a trial.
WARNING!!! Do NOT buy with your eyes!!! Use your ears!