User blog comment:ThenotoriousHeisenblokz/The 15 Strongest Dragon Ball Z characters/@comment-5693154-20131129200409/@comment-1598577-20131129202752

From what I've heard from fans who've seen BoG, Vegeta gets a pretty high power boost after Bills hits Bulma, putting him on Goku's level. Sure, Bills was off guard, but the boost of power probably had something to do with it. However, I'd place SS2 Vegeta with 'rage boost' (that's the term I've seen most often) closer to SS3 Goku in terms of power.