The wilderness lodge has a very unique feel, some people really love it, some people don't. The main buildling is very cool; take Ranger Stan's tour, or just take the elevator up to the top floor (well, the 6th floor since they added on that stupid concierge junk at the top), and walk down the stairs. Each floor is different, it is an interesting walk. They have a hidden mickey sheet for the lodge at the main desk, it can be fun.
But if you are a "Disney fan," well, I probably mean "Disney geek," there are a couple of things about the vwl that are, to the best of my knowledge, unique among disney world resorts. I may be wrong, but I think so. We haven't stayed at all the resorts- we haven't stayed at carribean, well, my wife has but I haven't, but I've stayed at the other moderates. I've stayed in the dolphin, but not the swan, and the beach club, but not the yacht club, and the music stars but not the other stars. So, I'm fairly confident in this, but not 100% sure. But I think, to the best of my knowledge, that the rooms in the vwl are the only rooms at wdw that feature a litho of a cell from a disney animated production (I bet vwl fans could answer a trivia question about what production it is from, and where in the rooms you can find it).
Second, there is a car from Walt Disney's Carrolwood Pacific railway in the iron spike room. If you've ever seen the old home video footage of walt disney riding that around in his back yard, you'll have to think it is pretty cool.
Also, if you consider wl as at least the spiritual extension of ft. wilderness, then it is sort of cool that wilderness lodge was meant to be there. Just as the polly is the adventureland hotel, and the contemporary is the tomorrowland hotel, ft. wilderness, and by extension wl, is the frontierland hotel. It is sort of cool to get to spend the night in extended frontierland. No other wdw resort area ties in to the parks like that. Throw in a good bar, a loud restaurant for families, a good restaurant, a good pool, easy access to the magic kingdom and the wilderness area recreation options, and it is hard to beat. And some folks like the theming, too.