#1 Kenny Omega
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This is the big one, the dream match, the one everyone wants to see. Yes, I know that Kenny Omega hasn't officially signed with AEW yet but it's his most likely destination so he still makes this list.
Omega vs Lesnar could be the blockbuster match that AEW needs to establish themselves as real competition to WWE. It wouldn't just be amazing for the hardcore fans but a match of that calibre would definitely make more casual wrestling and WWE fans take notice.
Kenny Omega is one of the best wrestlers in the world and arguably the top guy not signed to WWE right now while Brock Lesnar is one of the most recognisable names in the history of WWE.
This match would not only be great for the fans and those watching, but it would definitely do great business too.