Rollins? Rollins.
Roman basically reinvented himself into the gimmick of his career and has been a solid main eventer in that company, all of his storylines up to this point have all been booked well.
Jon Moxley is next to CM Punk as one of the top guys in AEW. That man continues to main event every company he's stopped into the last 4 years. NJPW, AEW, GCW. The man carries himself like a star and is a good promo. He at least feels like a bigger deal than what he is.
Rollins. Hasn't had a real meaningful feud since 2019. Has wrestled in the main event a few times but has mostly been a midcarder (albeit protected one) for a few years now. Yeah he's one of the two champions in WWE right now, but he's so far beneath Roman in the terms of actually mattering when it comes to the storylines in the company and Rollins is easily Number 2.