Mariusz weighed in at 330lbs at the Mohegan Sun Superseries show this past weekend. He looked as lean as he ever has. I've met him in person, and he is right at 6' in sneakers, at the time he told me he was ~290, well he told me ~130 and I acted like I was down with it, then I had to multiply by 2.2 later, lol.....super nice guy, didn't speak the greatest English (at the time, anyway), but real personable and charasmatic and interacted well with the fans......that said, his stats/look aren't very realistic goals for 99% of the population for more reasons that I want to get into.
Anyway, you don't have to be fat to be strong and you don't have to lift like a bitch to look, at the very least, like an athlete. If you want to gain muscle and strength, you do need to carry around a little bit more bodyfat that you'd ideally like, that's the reason most guys in general (and the a good amount on this board) get ''stuck'' with the same lifts and muscle mass year after year, they simply won't eat.....you can pretty much have well rounded strength and a solid/athletic look at a happy medium. If you want to maximize lifts, particularly bench and squat and overhead numbers, you need some fat and if you want to be absolutely shredded, then you're gonna be a weak bitch....but I think most of the general population would like what they see and what they lift around 12-15% bodyfat
All that said, I love lifting too much to want to be much lower than 11% bodyfat at any time, the weightroom just blows when you're than lean.....I even like to go near 15-18 a lot of times, and can keep my waist under 36, so I'm happy there.