I'm looking at this thread and having a chuckle. Each expansion had good and bad. A lot of it depends on your perspective.
Kunark was great, it spread people around a bit. Had very nice dungeons.
Velious was poor at best for me. It was way too raid oriented (which didn't fit my game style).
Luclin was terrible imo. This is where things started getting out of wack too much. Big line was drawn between the power gamers and the regular guys.
PoP seemed very restrictive, and terrible at first. However, this expansion had some of the best content ever! Stuff like trials (forget they were needed to advance in the planes, they were fun to figure out and beat), hedge maze, etc. Some of these encounters were a nice change to the usual camps.
LoY I have no clue. I was too close to quiting when it came out, I didn't bother.
LDoN sounds pretty nice to me. I always prefered single group over raids. This expansion almost makes me want to give Sony another 20$ to check it out. Bah, nm, I'll just borrow my friend's account.
So for me, that was 2 good, 2 bad, 1 unknown, 1 looking good. Guess it wasn't all that bad seen from this angle.