I have always gotten all of my requests granted. That being said, I never expect to have them granted as I know they are only requests. I try to keep the requests general depending on the resort. For example, at BC I put down quiet room, 2 queen beds (got a FABULOUS, huge corner room with a huge balcony - couldn't have been quieter). At Poly I asked for quiet room, 3rd floor, close to GCH. Got a fabulous room on the 3rd floor at the very end of the hall in Rarotonga - couldn't have been better!
The first time I ever made a room request, I made a very specific one at Poly, 3rd floor, Fiji, marina side, connecting rooms and I actually got every request! I would never make that request again, though - I got REALLY lucky on that one.
I think "facing EPCOT" is general enough to have a good shot at your request! I know the CM's do their best to grant the requests if there are rooms available.