penn vs alvarez or aoki
 

i think penn would take em both but if he couldn't get the fight with alvarez down, he maybe in some trouble. especially if he decided to stand and bang. and i could see bj doing that just for shits and giggles.

I think Penn is more well rounded than either of those fighters but if it went to the ground the Aoki fight could be very interesting.

There are so many great matches to be made at 155...