The W rooms are huge --- I stayed there last year and had a huge Office suite -- it was like an apartment with living room, bed, office and a nice bathroom. Ive never been to Sheraton Universal (altho I drive by it almost everyday), but Ive heard bad things of it (needing renovation, etc). The Bonaventure is nice - but, the W is the best of your choices out here.
If you want to be near BHills -- the W is closest of your choices; the St Regis or Century Plaza are much closer and better located for that area. For W, you will def. need a car -- St Regis or Century Plaza you could walk to BHills if you wanted -- but, hey no one walks in LA!!!!
[This message has been edited by AA_SPG_Fan (edited Dec 16, 2003).]