What's the best size BBW?

I've seen so many bbw lovers on here but I've always wondered what guys consider to be the best size bbw. Is there such a thing as too big when it comes to bbw's? The biggest girl I have ever been with was 485 and I can honestly say it was the best and most memorable sex I have ever had. Her ass was so huge that when we went to the movies she could only go to a theatre that had bench seating because it literally took two seats hold all of her massive booty (she is pictured sitting on a leather ottemen in my "Kansas girls" gallery so you can see I'm not lying.)