[Optimus Vader]

I'm going to consolidate the lines into one (kind of how I look at Marvel 3.75"), but I'll give five for each.

Best:
-Cable w/ Baby Hope
-WW Hulk
-Crossbones (movie line)
-Bucky Cap (movie line)
-Juggernaut

Worst:
-Bucky Cap from MU GB set (clear #1 in this category for me)
-Jean Gray
-Doc Ock (both from Spidey line)
-All comic Caps from movie line that are not Bucky Cap

Underrated:
-Constrictor (I saw him mentioned a few times already as being underrated, so maybe he isn't)
-Gambit (XMO)
-Movie Cap (seems like many prefer comic looks better.. I usually do too, but I love this figure)
-The Thing (any version--I keep reading how this mold needs to be retired, but it looks like a perfect Thing representation to me)
-Rhino (Spidey Line--Venom and Lizard aren't the only gems from this line)

Overrated:
-Beast (MLS version--it's our only Beast, so people need him, but he could be so much better)
-Blade (I love Blade as much as the next guy, but I think his rareness is what makes him so desirable)
-Thanos (a must have character, I know, but he's just ok for me)
-Cyclops (XMO--we have a few better options, but I still see him in many pictures)
US Agent (Cap movie line)