I've been slowly going through the post-ROTJ EU in chronological (story, not release) order lately. My only prior EU experience was the Thrawn trilogy, Darksaber (ew), and Splinter of the Mind's Eye. So far, here's what I like about the EU:
- The Thrawn Trilogy - can't wait until I get to re-read those!
- That Truce at Bakura introduced a new, non-Sith and non-Imperial threat in the Ssi-ruuk (even though the novel was still basically the heroes against the Empire)
- Luke Skywalker and the Shadows of Mindor because it was fucking awesome and loads of fun to read
- X-Wing: Rogue Squadron so far (about halfway through it)