phliuy

isn't vibranium the "anti-metal" metal or something like that? 
marvel wiki to the rescue! 
http://marvel.wikia.com/Vibranium  

apparently, wakandan vibranium will absorb all vibrations imparted onto it by storing the vibrational energy between the bonds of the vibranium atoms. However, there is an upper limit of energy which these bonds can absorb, as seen when vibranium failed to absorb the full blast of a bomb. The first adamantium was created when some lab guy fell asleep and vibranium combined with steel and some other stuff, making a material called proto-adamantium that's stronger than any adamantium ever made.  
 
So to whoever said that cap's shield doesn't have any adamantium in it, you're kind of right...and wrong. His shield is entirely adamantium, and the strongest form of it ever created.
 
Antarctic vibranium on the other hand will liquefy any metals nearby through vibrations that come from its own atoms.  [This next part is purely my own conjecture, and is not to be taken as complete authority] 
antarctic vibranium most likely does this by vibrating at a frequency that causes the bonds in the nearby metals to lose hold of eachother. The vibrations from the antarctic vibranium nullify in part the weak nuclear forces of nearby metal atoms, causing them to liquefy at much lower temperatures than their melting point due to their weak attractions to other atoms. however, the weak nuclear force is not completely nullified, as the metal is transformed into a liquid state, and not a gas or plasma state. This is similar to emitting a sound wave at the resonant frequency of an object and causing it to vibrate. 
[end conjecture] 
  
also, the marvel wiki says that true adamantium is almost as strong as cap's original shield, so take that as you will. http://marvel.wikia.com/Adamantium 
It also says that a weaker form of adamantium (secondary adamantium) was only very slightly dented by thor hitting it with mjolnir. Since thor can hit much harder than a bomb, it can be shown that even a weaker adamantium is much stronger than wakandan vibranium.
 
so there you have it. adamantium in all forms is much stronger than vibranium, but an alternate form of vibranium (which should technically have a different name due to its completely different properties) would liquefy the hell out of even the strongest adamantium. 
 
Problem solved.

marvel. thor and brb can take wonderwoman and wonder girl. dc herc is probably more powerful than marvel herc, but not by much. dc ares will stomp marvel ares. I suppose it will come down to ares vs loki and thor with their combined magic. I think it will be too much for ares to handle.