Besides length, I like them thick, meaty, and girthy. I also prefer them spongy and pliable rather than completely rock hard, since I am much more of an oralist. How the veins run alongside the shaft also make for an interesting visual delight, and gives each cock its unique character. A prominent bulbous head is also nice. I like both cut and uncut, though the unique smell of an uncut one can be sexually intoxicating. The overall scent of the cock is also erotic. How's that for my list of favorites?