If you have the means, I would definitely recommend the GF. It's right on the monorail, great views of the castle/fireworks and Seven Seas Lagoon. The restaurants are romantic - Victoria & Alberts ($$), Narcooses, Citricos and Garden Grove Cafe. You can get massages at the spa and stroll on the beach. It's nice to sit in the lobby and listen to the piano.
WL is nice, too, just more of a "woodsy" feel. I like Artist Point and taking the boat to the MK, although GF has that, too.
Depends what you want and what your wife enjoys. A lot of people find the GF stuffy (although, I don't) - I love it!