i have had guys of all sizes. and i have measured a few. one guy was about the size of my thumb when he was hard (sad), and one guy was 11 inches. guess what? the guy with the 11 wasn't very thick, so it felt weird and kind hurt. and he wasn't great in bed. the small guy at least could last 15-20 minutes, so it felt better.
the new guy is about 6, which is ok, and he's getting better in bed too. first few times were just ok.
I much prefer THICK to long any day