I've never stayed at WM Anaheim and never will because of the daily fees. Dolphin's Cove is our top choice other than VGC. They have free parking and wifi and we like the accommodations just fine. Driving into the toy story lot there is much faster than the ART shuttle or mickey & friends garage.
BTW, RCI lists DC as having taxes or something daily, but this isn't true. We've never had to pay a dime extra when exchanging there.
As for an ongoing search, if you want summer, you need to do the search. They've already made their bulk deposit for 2015, so you'll only get cancellations at this point. I don't think it's too hard though. I have ongoing searches going and that's a resort that frequently seems to come up if you aren't needing a 2 or 3 bedroom.
Oh, one bummer thing though, if you exchange for a 1 bedroom, they'll put you in their tiniest layout which isn't too great for 4 people. If you do a 2 bedroom, you'll only get the 1 bath layout. They give all the better units to the owners first.