I'm vehemently against it in the typical sense, eg. something done unconsentually to newborns. If you're 18 and want to cut up your willy, go nuts. Or leave your nuts alone and just stick to your willy. Either way it's your businesss.
Religion has multiple purposes. One is to pass on distilled wisdom from generation to generation. And for tens of thousands of years, we didn't have running water. In which case circumcision makes perfect sense. Like everything else about religion, the modern world has made circumcision obsolete. It's no longer difficult to keep the glans clean, as most men take 1-2 showers a day.
I'm cut and I'm disgusted with the establishment that let it happen. The sleazy doctor looking to make a few bills for 5 minutes' work, the obsolete religions which insist their doctrines and thus power remain a part of society, and my parents for not having the brains to question it. I'm looking into foreskin restoration, which apparently is very possible with patience and an understanding of the methods involved. I'd post a link but I don't think it's appropriate for AT, google should suffice if you're interested.