Curently my favorite Marvelīs Artists from the comic books i have read are :

1-Joe Bennet.(Immortal Hulk)
2-Pepe Larraz.(Avengers,House of X)
3-Ryan Stegman.(Venom)
4-Jesus Saiz.(Doctor Strange)
5-Mahmud Asrar.(Conan.The Barbarian)
6-Mike Del Mundo.(Thor)
7-Humberto Ramos.(Amazing Spider-Man)
8-Ed McGuiness. (Avengers)
9-Sara Pichelli. (Fantastic Four)
10-Valerio Schiti. (Tony Stark.Iron Man)

Honorable Mentions:
Javier Rodriguez (History of the Marvel Universe)
Gerardo Sandoval.(Amazing Spider-Man)

What artists at Marvel are your favorites?