I've heard that Red Hand of Doom is pretty good, and I like Expedition to Castle Ravenloft (although, to be fair, that one's not wholly of WotC's making), but I have also heard that some of the more recent adventure offerings from WotC are a bit poor - linear, map-based and combat-based for the most part. Is this true? If so, they're definitely not up to the standard of the AoW (which, although it is linear in overall structure, offers plenty of diversity and diversions along the way).
That said, I'm a Dungeon subscriber and have a huge stack of 1e and 2e adventures that are easy to convert, so I'm a hard sell when it comes to adventures. Necromancer Games and Malhavoc had a steady customer in me, but Expedition to Castle Ravenloft was the first WotC adventure that I bought since their original "blue cover" 3.0 adventure path. I've played a couple of Eberron adventures, but wasn't impressed at all. I'd say that WotC really do have something to be worried about as far as competition from Paizo is concerned. Paizo are top of the heap where quality is concerned these days, imho, and I'll definitely be checking out their new line of ogl adventures.