Top tier is artists that do their own coloring and are good at it, they understand color theory, shading, lightning, reflex, volume and texture.
Lee Bermejo and Jock are amazing comic book artists. Ross (even if millenials from /co/ meme that he's bad) is a great artist by itself, not exactly perfect for dynamics.
Greg Capullo and Jim Lee have the heavy hatching that people like Miller, Romita and Liefeld try to do, but they actually know what they are doing, for most part. Every line should count and if there's a shitload of lines that don't add shadow, volume or detail, then they are useless and shouldn't be there.
Jeremy Bastian does highly stylized work with abusive details, and it doesn't look like shit, on the contrary.
Dave McKean is like the definition of stylized and abstract, and yet he knows what he is doing, his bodies doesn't look absurd and retarded. One should also note that the setting is what calls for the art. If the story is passing on a regular day, on a regular world, with street level heroes, there's nothing demanding weird contortions of the body, no matter what's your style.
A Serious House on a Serious Earth is an example of proper atmosphere for weird shit.
Daniel LuVisi makes "tacticool" and hyper realist the proper way.
Nebezial knows how to make volume extremely well.
Adam Hughes' faces.
Some faggots were saying that those criticizing the shitty art posted are just shilling "ultra realism" used on modern Marvel books. First off, Marvel doesn't do ultra realism, even Clayton Crain that is good at that is stylized. The "ultra realists" are users of 3d posing programs and users of random rendering into their art. They are also garbage.
Second, that means nothing, you don't need to be realistic to know your anatomy and composition. Perfect example: David Petersen.