The whole "who can beat who" (whom?) mentality is beyond pathetic.
Ahhhh, so I see you've never gotten into lengthy, loud-voiced shouting matches with your friends about whether the Thing could beat the Hulk?
I always assumed that kind of thing is part of the fun of being a comics fan: the obsession with minutiae, and stomping downstairs to whip out a copy of MARVEL TEAM-UP to prove a point, or writing lengthy essays for fanzines wondering if the Vision's "desolidification" or "other-dimensional mass-shunting" power was somehow connected to the other dimension of the Golden Age alien "Vision," or wondering if Abin Sur ever met Superboy.
Part of the reason that this sort of thing has such appeal is that it is successful in getting across characterization. This is important if you read comics to read about interesting people.
For instance, the Busiek/Perez JLA/AVENGERS had the members of the JLA "beat" the Avengers when they individually broke up to go after power objects AVENGERS/DEFENDERS WAR style, because individually they are the best and are skilled at working independently. But if I remember when the two teams had a battle royale itself, it was the Avengers that won: because the Avengers are much more about teamwork, group power, group identity and with strategy they can be greater than the sum of their parts.
(Plus, that business about Captain Marvel duplicating Green Lantern's emerald energy was way cool, as was Green Lantern "recharging" the ring from the Cosmic Cube.)