Talk:Sonic the Hedgehog vs The Flash/@comment-26865490-20151118232744/@comment-26418719-20151119085204

I suppose it was retconned. This was one of the earlier comics (Flash #150, I believe)

Either way, neithers' feats are clearly defined- Sonic's best feat was being able to run across the entire Archie Sonic multiverse twice in the timeframe of one day. That's in base form. Also, it's iffy since, again, we don't know all the specifics about Speed Theft, nor do we know whether or not Barry can actually use the ability. In addition, Archie can easily outlast Flash- he survived something called the Ultimate Annihilator at ground zero, which destroyed (and created) multiple universes. This did knock him out, but it puts him at least close to Universe-level in durability.

In addition, while we're not able to know just how powerful Sonic is when it comes to reality warping, I can make a good guess. Just before the end of the Genesis Wave Arc (The first time Eggman used it, not the second, which led into Worlds Collide), Sonic absorbed just enough Chaos Energy that was leaking out of some sort of tube to transform into Super Sonic. With just that power, he managed to re-write history on a planetary scale.