Saiyan Saga Vegeta would end current Supes.
Depends on the versions. Vegeta wins against golden age and post-flashpoint supes. Post-crisis and pre-crisis supes beat vegeta.
you need to obtain 20 stars in dragon battle collection, and buy the secret Battle 47 (What-If Stories) - beat this battle to unlock ssj3 vegeta (it is a separate character from vegeta as it is not canon)
It is Dragon Ball Z episode 110 - Battle in Kami's Lookout. It is between 11:46 to 13:57.
the potara earings
on tag battle be goku and vegeta and fuse you may use the potara ear rings
Vegeta would beat Gohan in any fair fight (i.e. SSJ1 vs. SSJ1, etc).
Superman, unless you are talking about early golden age superman or post final crisis superman, in which case goku wins.
Vegeta is stronger in the real final battle vegeta passes super saiyan 4 and gos super saiyan 5 (phyco saiyan) and vegeta gets to it by himself but goku nearly kills himself to get to it by absorbing a spirit bomb to get to it and vegeta wins the fight and kills goku and there punches are so strong that they explode planets but when the battle is done vegeta uses the dragon balls 3 wishes 1.brings back all the planets they destroyed and everyone on them 2.bring goku back to life 3.brings back planet vegeta and that's really all vegeta is the strongest
SSJ5 Goku wins (if he wasn't in a battle then SSj4 Vegeta wins)
Nuclear Man
u cant get vegeta in melee only on battle
ss3 goku is the best on the game