OP - with your requirements there will be SO MANY choices. Check out what people post they like, compare looks, amenities and prices. I will just say the drive from WDW to Universal is not bad so don't be afraid of something if it's closer to one. I wouldn't go past Disney property to the west though. My favorite has been Wyndham Bonnet Creek Resort so far in 1 and 2 bedrooms. Been multiple times to Vistana Resort in 2 bedrooms ⬇, Marriott Grande Vista 2 bedroom ... this summer going to Marriott World Center in 3 bedroom and in October back to Grande Vista in a studio. We really enjoyed Grande Vista and it's a great location on International.
Vistana Resort is close to Disney on 535 (and CFA) and its very large with multiple villages of low buildings and each section with pools. Lots of trees and shade. I've stayed there several times and the interiors of the units are very nice. But it does feel like an apartment complex. We used it just for bed and showers.
Vistana Villages is more between Disney and SeaWorld on International. It has more of a resort feel with higher buildings, lots of sunshine. It is right by grocery and lots of stores in the Outlet area. I have never stayed only because I've never gotten the low rates I got at the "resort" Vistana.