Now TO ME, 4e epic felt 'gonzo' and really epic. I mean, I think you have to play it that way. You COULD (and IMHO poorly) play it as just bigger numbers paragon is just bigger numbers heroic, but that kind of misses the point of it. I think 4e relies on the players to DO gonzo. The GM does have to not fight it either, but it really is in there. I mean just read the description of the Thief of Legend ED! Or even Demigod, you ARE A DEMIGOD!!!! If you RP that like you mean it, the sky is the limit. The great part being, the numbers actually work, which never happened in any edition before 4th, AT ALL at those kind of levels. I think 5th is better than 3.x here, but fall a bit short of 4th.