Damn, that sounds mouthwatering!
I would say I favor uncut, rather than prefer. I love a nice skin, but also get really hot and bothered with a nice, big mushroom head. Where I do have preferences is cock shape and thickness: I'm not particularly fond of tapered or downward-bent ones (upward or a slight to-the-side bends do excite me). I'm not at all into very thin or very small ones.
A tool that's at least average will get my attention.
