Hi Shari,
Great question!! You truly can't go wrong with either choice. Hands down for me it would be
Le Cellier.
A couple of things to keep in mind:
*located at the Canada pavilion (yay Canada)
*it features the best beef Canada has to offer
*a variety of fine Canadian wine
*after your meal you can get some great exercise walking around Epcot
Full disclosure...I am Canadian, so I am a bit biased. The food at Le Cellier is incredible and I know you and your friend will have a wonderful meal. As I said, either choice you cannot go wrong.
Happy dining / Bon Appetit!!!
Carrie