I also vote for Rose and Crown. If you plan it really well, (use this board for the tips), you *should* be able to get a table overlooking the water for illuminations. We did 2 years ago, and it was nothing short of awesome. The two of you can plan on strolling around Epcot together, then have dinner and the show. If you haven't seen Illumations, it is awesome, and you will get goosebumps seeing it this way.
Any way, happy anniversary!!
shelly