#1 Drew McIntyre (Risen)
There might be no improvement in position over the past year, from SummerSlam to SummerSlam, than Drew McIntyre's rise. The summer of 2019 was pretty rough for the Scotsman, as he was fighting as Shane McMahon's bodyguard and getting beaten by his main rivals. McIntyre even got pinned by Cedric Alexander at one point.
The Scottish Terminator was not even on the SummerSlam card. He lost to Ricochet in the first round of the King of the Ring tournament and was without much direction as a heel in the following months. However, as 2019 became 2020, McIntyre turned face and constantly got more and more over with the fans.
He won the Royal Rumble Match and main-evented WrestleMania 36, where he defeated Brock Lesnar to become the WWE Champion. The moment may have been spoiled by COVID-19, but McIntyre still stands strong as the WWE Champion. His reign has been pretty good so far, despite the unfortunate circumstances we are currently in.
Drew McIntyre has had great title matches against Seth Rollins, Bobby Lashley, and Dolph Ziggler so far. He is set to have another belter at SummerSlam, with Randy Orton stepping up to the plate. He is on top of the world, very clearly hailing as the biggest face WWE has right now.
The fact that he went from not being on the SummerSlam card last year to headlining the pay-per-view 12 months later highlights the immense progress Drew McIntyre has had.