The Phoenix Convention Center for the annual SGNA meeting-- beautiful venue!
Amazing! The Century Link Conference Center in Denver Colorado is like a college campus. Wooded with a small lake, walks, servicable (and cheap) rooms, superior electronics. Unfortunately, the website says it'll be closing this summer...
Sitting in my 4th story study with a view of the Chesapeake Bay and the CBBT--giving a presentation online. Priceless
Grand Hyatt DFW-- great rooms & service, great food in the lobby restaurant (albeit a bit pricey), great access. Land at DFW, and take SkyLink to the D concourse. And should you actually have a couple hours before you leave, go to the top floor exercise room and sit by the rooftop pool in a lounge chair. Sweet!