Yes, I'd have to agree...I find our Hybrid Limited to be very comfortable, too. Perhaps it is MY wider and larger than most butt (6'-5" 290lbs.), maybe that's what is helping me?!.

Or perhaps it's because I came from our 08 Highlander and 11 Tundra. But (no pun intended) I like it, the whole car feels like a sports sedan, much more than a luxury car. Of the 27 cars I've had, 8 have been Honda/Acura products and 12 have been Toyota products...so for me the Avalon is more like a Honda ride and handling, than a Lexus.
I've also rented a Camry Hybrid twice, one time for a week. And I like the Avalon WAY better in my humble opinion...for me, the Camry's side arm rest/power window switches would dig into the side of my leg. Anyway, just my two cents...again coming from a guy who's had 27 cars, and most recently SUV/Truck types (with the 4Runner, RAV4, Highlander, Tundra, and Tacoma being the last 5 purchases).