Great thread.
There's a number of very talented artists out there right now, but picking a superstar or superstar-to-be is tough.
I'll second the thoughts about Ivan Reis, Jim Cheung, Ethan Van Sciver, David Finch, Ed Benes and J. Scott Campbell being the next gen of great comic art superstars. I actually think that they are considered as comic superstars already.
As for up and comers, some great artists to watch out for are Steve McNiven, Francis Manapul, Paolo Rivera, Jason Pearson, Eric Basaldua, Patrick Scherberger, Lee Bermejo and perhaps Andy Braze.
Andy's work is sparse, and not particularly consistent. His detail work is unbelievable, but his layouts and poses seem somewhat stiff to me with a decent amount of repetition of poses between covers. I actually think Andy's best piece by far is a commission of the Marvel villain Nightmare (I think it is in Chris Caira's CAF). It is unclear whether Braze can hold down a monthly book, so more exposure is uncertain at this point.
Some of the very talented artists mentioned on this thread have a stylistic sense that may be too strong to appeal to a mass market (e.g.: Furlong). While I've seen many of his images, and there is no denying the man's talent, he may be too much of a true artist to enjoy mainstream appeal as a comic artist which often requires artists to commit to a certain level of graphic realism to communicate the story. But on other titles, such as Dr. Strange, Furlong's stylistic imaginings would be fairly amazing.
It has been great seeing the thoughts of others on this thread.
Best wishes to everyone for a happy holiday season.
- A