Legion of 3 Worlds vs The Annihilation Wave

Let's take all the Legions such as:

Pre-Crisis Legion
Zero Hour
3boot

and put them up against this cosmic threat. That is what the Legion is known for, is taking on cosmic threats. Have they met their match or can they pull off a win, with the combined Legion teams. They can use whatever tech and resources they have. And of course, all the members.

Pre-Crisis Legion easily wins. If Superman is in there, he himself can kill millions

unless the A-Wave are allowed a free shot with a magician, Superman cruises through this.

Are the gods and Thanos in the fight?

Yes. I doubt the A Wave can take it without them.