Would? and Man In The Box are great songs but not the style of AiC I prefer. I prefer their slower atmospheric stuff like Dirt, Junkhead, Frogs, The Devil Put Dinosaurs Here, Love, Hate, Love etc. And when it comes to albums Dirt > Dinosaurs > AiC > Black > debut.
Would? and Man In The Box are AiC's Run To The Hills and The Number Of The Beast, in that they are great songs but both bands have so much better stuff.
I'm also really disappointed in AiC's setlists: from Dinosaurs they only seem to play Hollow and Stone; both fine songs but they played it really safe with them. They played Phantom Limb and Choke a couple of times only, and Voices which is the worst song off Dinosaurs.
My Top 10 would prob be something like:
Love, Hate, Love
Down In A Hole
Junkhead
Dirt
Angry Chair
Grind
All Secrets Known
The Devil Put Dinosaurs Here
Breath On A Window
Choke
(in chronological order)