Team Builder issue

So I've played many Team Builder games, but there are so many problems with it.

TEAM CREATION: If you don't force one of your prebuilt team members to take support/jungle roles, you'll be waiting a LONG time. Supports/Jungles simply don't come easy, especially since the jungle nerf it seems to be even worse.

JOIN TEAM: Getting top is almost impossible to join at some times of the night, and even on high traffic parts of the day you're waiting 5-10mins assuming the team you finally find likes your champion.

So what's my point? Unless you play support/jungle, you'll be waiting a LONG time. And top lane is the worst!

What's my solution? Reward players who join not so popular roles. I feel like I can only play Team Builder if I want to play support/jungle. ADC/mid isn't nearly as bad as top at least. So what kinds of rewards would work though? We can't give bonus IP because that would be unfair to other map types, so what about an IP reduction for playing overpopulated roles? If I want to play Top but have to suffer a 15% IP reduction, I'd gladly take it! Plus it would encourage people to play the less popular roles, get games rolling faster (since supports/jungs won't be so scarce), and maybe we can solve world hunger in the process if we apply ourselves.

What do you guys think? And please don't criticize if you don't play Team Builder, or haven't tried all roles and truly experienced waiting 5-10 mins before finding even a single game. It could be worse.

Oh, and yes, it COULD be worse, but it could be better! So before anyone says "it could be worse," just know that is the WORST excuse for not making something better (: