I dunno, I really enjoyed the latter parts of Marvel's Star Wars comics, but that's probably at least in part because I first read 'em when I was very young.
I also enjoyed Dark Empire, which was the beginning of the renaisance of Star Wars in the mid 90s. But There is a lot of not very good stuff that came out in the wake of Phantom Menace franchise frenzy.
Avoid stuff set hundreds of years before Star Wars, because it really does read like poor quality franchise servicing pap...