I'd definitely try the fondant when you cut the cake. A wedding I went to (not Disney) had fondant and it was delish!!!

To me it was like a gumpaste type thing. You actually had to cut it. But it was sweet with a vanilla-type flavor, almost like the buttercream. They say, since fondant is mostly sugar that if you like sugar (I do) you'll like fondant. But try it first. Then after you finish cutting, I'm assuming you can ask to keep fondant on. (It's easy to peel off. Guests shouldn't mind to much.)