First off, I feel like you're underselling 'The Great Wheel Debate' by not giving it a proper title and going all lower case....it gives it more a 'meh wheel debate' feel.
I've always been on clinchers, so I'm not going to say they're superior to tubulars because I haven't ridden both. When I did research into getting tubulars, the benefits didn't outweigh the cost enough for me to go that route. I race HED Jet 4's which have a wider rim that supposedly gives better rolling resistance....works for me.