@stupid_people: @cardle_grave: Feats Wise, Brolly is the most powerful next to the Gods of Destruction. Daizenshuu confirms that Cell is a solar-system buster. SSJ2 Teen Gohan was = Super Perfect Cell. A solar system is a mere fraction of a galaxy. His destructive capacity is massively greater than the rest of the DBU until the Destruction Gods were introduced.
Goku SSJ 1-4 doesn't come anything close to the destructive level Brolly has represented. You can't place it in "which transformation fits better" because none of them do, and they are all dependent on what they can achieve in their base levels. It had been basically said in Buu Saga that Goku as a SS2 was a bit stronger than Gohan had been against Cell. So Goku is SSB+ (Solar System Busting) as a SS2. SS3 is 4x that, so MSSB (Multi). Which still isn't anything close to Galaxy Busting.
Here's the whole problem i have with the whole destruction feat argument. When has goku ever destroyed a planet in his own power? But he has beaten Frieza correct? THE confirmed planetbuster right? Well by your logic since goku has NEVER destroyed a planet, solar system, galaxy, etc he cant! Now what the f*ck kind of sense does that make? Without saying plot or PIS there is no reason that goku with powers from the others beat broly (which means enough power to damage him significantly). Now unless you believe that those 5 fighters power is greater than goku at any time in the series what are your reserves on believing anyone can be Broly's equal or superior?