I do agree, except with Pettis. He's already earned multiple title shots and if Aldo wins, Aldo will go up and fight Bendo. Next in line for Aldo is Swanson, who Aldo already KO'd in 8 seconds. The only other contender for him that I can think of is Lamas.
I think Aldo vs Pettis will be an awesome fight.
I'm not sure how Chael or Nick got shots.