for me, after starting at 240, I'm at 195, looking to get down to 185. At 185, I think I'd have a fantastic advantage of strength over the other BJJ guys in my gym at that weight. As of right now, I tend to still roll with most of the guys who are 200+ (and I enjoy that, it works me to death), but when it comes to competition time, 185 would be perfect for me. Of course, the only part of my body with any sort of substantial body fat, is my mid section. The most difficult part. lol
This means, I have to get a bit more strict on my diet, and really commit myself to doing some outside cardio, mostly sprints since it would help me on the mats anyway.