We own at GV but have traded into LR once. LR is smaller, quieter, and seems more adult-oriented. We liked the pool very much (zero entry, lazy river) and the villas seem higher end, but smaller. The only bad thing about LR was some of the units (townhouses maybe?) overlooked a large empty parking/asphalt area. I don't know if it is still that way; we stayed there about 5 years ago and our villa overlooked the pool, which was nice. As mentioned, there are the 2 hotels nearby whose amenities you can easily access, including a golf course - it's a nice walk there and I believe you can also request a golf-cart ride to and from.
GV is a huge resort with something for everyone. It's not quite as posh as LR, but 3 out of 4 of us preferred the golf course there and we all preferred the location. The villas are a bit roomier and all the views are nice (pool, golf course, or lake). There seems to be a lot of families with kids there.
You can't go wrong with either. Some day we will try out Cypress Harbor. We only looked at it when we were considering buying, and ended up with GV.