well Veggeto is the single strongest character in the mainstream cannon while Broly is the strongest movie villian....hm tough call
broly
Broly
broly
Probably Broly, but it won't be easy.
Galactus.
goku
Cell.
broly
Broly would win in a fight of Super Android because he is much stronger.
SSJ 4 Broly.
In actuality it would probably be superman, seeing as he is always "As strong as he needs to be..." Superman is also known as being the mans with "no Limits" so superman would be as strong as he is needed to be whenever in a fight. another point to put is that superman is not overrated, just overpowered given everything he could ever need to win.
Broly murderstomps due to naruto not having planetbusting capacity.