Mondrian is still a mess on the outside, not sure if they're closer to being done with the rooms.
TheLondon is really nice BUT..the g.ramsay restaurant is not open, no bar open as of a couple weeks ago. its probably a little less than a mile down sunset from the mondrian.
The sunset marquis
http://www.sunsetmarquishotel.com is always popular with the rockstars and just opened their new villas section. just down the road from mondrian..
The Hyatt on sunset (across from mondrian) was just remodeled but I've never been in it (before or after)
I'll try to give it some more thought for you..