I have to second the Quesada Oktoberfest. I can't place exactly what it is I like about those so much but I'm down to my last one from a fiver, and from the first one OTT (or, Off The Airplane, as it were...) to the most recent one I smoked with about a year in the humidor, I just don't want this particular cigar to end. I need to go ahead and buy a box.
I have not had a CC Punch, but I've smoked several NC Punch Champions, and I've been underwhelmed. I like some pepper and spice in my smoke, but this is nearly overpowering and not very enjoyable. I know that it is not the same cigar at all, but it's all I can offer as far as Punch goes...
Definitely check out the Padron X000 lines if you haven't already. It took me a few times to really understand the beauty of these and why everyone likes them so much, but the mythical Padron Panatela has become one of my favorite cigars, period. Well, it would be if it existed. But it doesn't. Just ask Doc.
*EDIT* If it's any consolation, I have never seen an actual Opus X in person, either. I've been to several B&M's over here, but they mostly stock CC's. I think I might pay out the pretty penny if I came across one in a shop, but I haven't had the cojones to actually pull the trigger to buy some online.