Early DP Paul was a bit stronger than end of AG Ash. That's basically where they were at the time. Neither had won a league, so since this discussion is about Garchomp, it makes sense it would be stronger than his entire team back then. There's no reason why people should be using Garchomp defeating early 2007-era DP Paul as an example for Garchomp now.
All we know is Paul never won a league in Kanto/Johto/Hoenn either, since he wasn't a league winner when we first met him. So he apparently lost 3 leagues that we have no backstory on.
All we know is Paul never won a league in Kanto/Johto/Hoenn either, since he wasn't a league winner when we first met him. So he apparently lost 3 leagues that we have no backstory on.