I've only experienced two, both about 7" I think.
One uncut, one cut.
Uncut kinda seems both objectively and subjectively a little better to me in general, but that doesn't mean I can't love or have a lot of fun with a cut one.

But more importantly, I happen to love the guys attached to both of them

and I feel very lucky with both their equipment.
Having said that, I do vividly remember the looks of horror on my classmates' faces when, at our Christian primary school in the Netherlands, we learned that circumcision was a thing back in Jewish times. We learned that it was practised before the time of Jesus. All agreed that we were glad not to be living in those barbaric times when parents would have a bit of every little newborn boy's genitals cut off.
Imagine my surprise when I later found out that Americans had reintroduced this practice, primarily as a deterrent to the evils of masturbation, and that the vast majority of boys born in America were subjected to it to that day. I'm sure my teacher had no idea either. I don't think it's a generally well-known fact in Europe.