#3 Jericho wins clean
The two easiest finishes are if one of the participants wins straight up with no chicanery. Jericho is respected throughout the business as an innovator and special talent that only comes around once a generation.
For that reason alone, it's perfectly feasible for AEW to crown him as the first World Champion. He's arguably the biggest star in the company who also has pull outside of it. While the members of the Elite are top stars in the business, Jericho has done it in the biggest company in the world, WWE. He's also been around long enough to have taken part in the Monday Night Wars.
A female WWE star said her life is in danger. Details HERE
While he's not the same athlete that he was five to ten years ago, Jericho is still pretty good for someone near 50. He could easily pick up a win over Page after a Codebreaker or a Judas Effect. Title chases are often better with the face pursuing the heel, so that could be the direction AEW takes at All Out with a Jericho win.