You're all forgetting the casual feats presented by even low-tiers in DBZ.
Such as Recoome tanking the full brunt of a planet busting attack(albeit with quite some damage sustained), and being able to casually dominate those same powers afterwords.
Or Frieza simply kicking an even stronger multi-planet buster away.
Or even better, Frieza tanking a planet capacity blast, as well as a planetary explosion, after being bisected and beaten to near death, and still surviving.
Or Vegeta and 18 CASUALLY throwing around and tanking planet busting attacks like they're nothing.
Once we get into solar system busting and tanking that Cell level characters are capable of, this becomes a stupid debate. Not to mention that he can solar system bust with a dense attack like a kamehameha wave. That's like blowing up a sky-scraper with a sniper rifle. Cell can easily be scaled to small galaxy level tanking/busting, and Kid Buu even further with a single attack.
I swear, it's like you don't even know what DBZ is.