One thing Blizzard did well with Burning Crusade, even WOTLK was the amount of diversity in each zone. Dungeons are no fun, and serve only as a purpose for early gearing to get into raiding. Remaking vanilla dungeons into heroics was another poor concept that wasn't done very well, and I only feel that Heroic Deadmines could have passed, as it closed a gap for Edwin Van Winkle Dinkle.
I just want dungeons that I can actually enjoy re-running. And a wider selection.