> ...is apart from Thor the others don't even register on the threat-o-meter.

It's still a great showing for Thanos, He takes the Things sunday punch as easily as Sentry recently did and while Thor could very possibly take the same hit just as well it does go to show Thanos is physically a match for Thor more or less, notably he seems overpowered by both Grimm & Thor together however.

Obviously though there is a world of difference between such a showing and what Superboy has been showing - when you're seen very casually dismissing superman, Power Girl and assorted other heavy hitters from the DCU elite you're in a league of your own! No way Thanos matches that sort of pure strength showing...