keeping in mind that my default is Essentials, and all my Masterworks were published before the Essential (if there even is an Essential), but i have to say there are 3 artists i really want in color (Starlin, Steranko, Adams);

Warlock v 2. (signed just yesterday by Jim Starlin)
Atlas Heroes v 1, 3
XMen v 6
Nick Fury v2
TtA v 2-3
ToS v 2-3
Captain Marvel v 3