Thought we'd take a break from Top Ten lists.

In no particular order, here are mine:

1) Hulkbuster Iron Man (just a great rendition of that armor)

2) MODOK CnC (pretty much perfect)

3) Modern Thor 2012 (practically torn from the comic page)

4) War Machine (the removable faceplate that shows Rhodes is a great detail)

5) The Hulk from the Hulk/Leader 2-pack (another torn from the comic figure)

Well most of what I collect are villains , so my favorite top 5 Marvel Legends are....

5) Lady Deathstrike

4) Crossbones

3) Mole Man

2) Klaw

1) Taskmaster

My top 5 are :

5. Sub Mariner (first release)
4. Wolverine (brown costume)
3. Hulk (from the face off 2 pack)
2. Storm
1. Colossus (looks just like an Arthur Adams drawing)

1. Modern Thor
2. BAF Sentinel
3. Black Panther
4. Shanna
5. Destroyer

I think this ones tough without looking at them all in front of me but

TaskMaster
Valkyrie
Nightcrawler
Shanna
Abomination

and

Classic Rhino- (even though thats technically SpiderMan Classics)

Destroyer and Taskmaster missed my list just barely. They both would have been represented in my top ten.

I know it's blasphemy, but I never cared for the particular version of the Sentinal that they did. I much perfer the one Hasbro came up with. However, from a simple engineering standpoint, it was amazing!

That's what a BAF should look like.

After seeing Stew's list I had to go back and edit mine. I had to add Shanna in there. She's my favorite female figure ever, in any scale. They did a magnificent job of replicating Frank Cho's art, as he's got a pension for rendering voluptuous women. Tres magnifique!

Captain America Series 1
Ironman Series 1
Brown Wolverine Series 6
Punisher Series 4
Abomination Series 13

my list:

1)Modern Thor (2012)

2)Wolverine -Brown costume (series 6)

3)Sentinel (BAF)

4)Modok/Fing Fang Foom/Giant-man (BAFs)

5)Doc Ock (series even with the little suction cups on his mech arms.

6) Juggernaut (series 6)/Hulkbuster Ironman(series 11)

Wolverine Black and Yellow (Red Hulk)
Face off Captain America
Bucky Cap
War Machine
Sabertooth

1. Giant-Man - what a BAF should be
2. Loki - Onslaught series
3. Green Goblin - Onslaught series
4. Fin Fang Foom
5. Hulkling - YA set

I see you're including BAFs.
That's kinda tricky, because they do count as Marvel Legends, but I just think it's kinda unfair to stack Nightcrawler up against Galactus. They are about equal in terms of quality, with Nightcrawler being more articulated, but Galactus is just way more impressive.
It's also hard to not include figures from the sublines like Fantastic Four Classics, X-Men Classics, Hulk Classics and the Spider-man line. The Series 12 super-posable Spider-man, the Smart Hulk, the classic Hobgoboin, the Iron Man movie 2 War Machine - these are all some of the finest works ever done. But ok, in these guidelines, here goes:

ML13 Green Goblin
Just insanely cool-looking, and expertly crafted. Just about perfect in every way, and the nice glider he comes with doesn't hurt.

ML4 Beast
Ofter overlooked, but so cool, so well articulated, with a great hinged jaw and amazing posability for a gymnast -type character.

ML8 Man-thing
A unique toy for a unique character, it is so impresive in terms of sculpt, and great design and articulation.

FO Sabretooth
Not even a big fan of the character, but it nails the clasic look of him to a t. So great, and everything about it is perfect.

BAF Arnim Zola
OK, maybe I'm just so hapy to get it, but it really is a great piece. Love the new ankle rockers, and sturdy as a rock and great paint and excellent rendition of a great design. Couldn't be happier with him.

Close but no Cigar
ML5 Colossus - almost perfect - flawed neck joint
ML6 brown costume Wolverine - almost perfect - needs hinged wrists
ML1 Iron Man - almost perfect - limited range of motion in many joints

And since all I collect are the heroes , here are my 5 favorites:

1.) Nova (I'm biased he's my favorite Marvel character)
2.) Modern Thor
3.) Nick Fury with the Jet pack (the Toybiz Fury)
4.) Captain America from the two pack with the Red Skull.
5.) Hawkeye

1) FO Captain America - the best damn figure.

2) Arnim Zola/Modok - the wonkiest looking things, BUT the best comic to figure adaptation.

3) BAF Giant Man - the size and look. What DCUC BAFs wish they could be.

4) Fearsome Foes Rhino - all above could apply to this. Great posing figure.

5) Blob - great size, sculpt, and engineering.

honorable mentions - Colosus, Beast, Hercules, Power Man, Dragon Man, Terrax, Mojo, Mole Man, Crossbones, Ares, Sandman, Lizard, Hobgoblin