Well, a 67-foot waterslide at Wilderness Lodge qualifies as a "real" waterslide in my book.
We love both resorts, but both resorts have a different atmosphere to them. If you're into a national park, out-in-the-woods atmosphere, Wilderness Lodge is great, in fact it's almost the perfect place to stay during Christmas (the Fla. winter weather is usually too warm to make it perfect, lol). But if you're comparing pools, everything loses out to Stormalong Bay at Y&BC. We stayed at the BC in May, and for the first time, we never went to the parks on the first day: My wife refused to get out the pool(s) until our dinner reservation.
I can't say a bad thing about either resort. Remember, if you're interested in pools, there are 2 places on Disney's property that are much better than Stormalong Bay: Typhoon Lagoon and Blizzard Beach. So, if you're staying at WL, you can get your water park vibe in that way. Both locations are great, and while not on the monorail, you're a quick boat ride from the Contemporary Resort, and can hit the monorail there. That same boat route also goes to Ft. Wilderness, and there's a direct boat to the Magic Kingdom. Not only that, if you take the boat to the MK, you can transfer there to boats to the Polynesian and Grand Floridian Resorts, so you have that alternative with the monorail from the CR to access all the MK area resorts and restaurants. WL is also often less expensive than Y&BC.
And, of course, Y&BC also can't be beat for location: walking or boating to 2 parks, and the Boardwalk is there via walking or boating as well, plus Swan/Dolphin. If all things are equal, and we're talking hot/warm weather, I'd probably go Y&BC. Winter, probably WL.