I think the real issue is that the people that you are talking to have the wrong impression about sex. How detached can you be, how far away from intimacy, if you are making comparisons like that. There is so much that goes into a healthy sexual relationship between a husband and a wife that having objective expectations like that just really shouldn’t be part of the equation.
If you want to have great sex when you marry, then marry a man who truly cares about you and who you would sacrifice all that you have to be with him. Marry a man that you can communicate with, who you can share your heart with, without being uncomfortable or afraid. Marry a man who is very giving, and who you want nothing more than to make him happy. When it comes right down to it, that is what sex is, an expression of the total gift of self, made without reservation. I think if you are putting qualifiers on it, like he must be uncircumsized, then you are certainly making reservations.
Look for a man who will be a good father, and will help you get to heaven. These should be your priorities when you think about marriage, not the gossip that your friends who appear to know nothing at all about truly great sexual intimacy are fillling your head with.