This thread was really badly dome by the OP, not putting im any specifics. anyway let's be real here most of yall are saying smash or all star because you like the game. If we see this from a neutral viewpoint this is certainly complicated.
On smash we got kirby, Ike, link, Ganon and pit. These are the main hitters of smash.
On all stars we got Zeus, Kratos, Dante, Raiden and cole.
the problem is that some of these character are immortal or need some stupid reason to die (ganom master sword blah blah blah)
It will all come down to Dante basically since that guy can only be killed by Demoms, and unless you count dark pit there are no demons on smash.
So after a long bloodshed and dante trying to figure out how to kill immortals from Kratos he'll probably win.
Also to all those people saying "kirby did this on this game" or "link did this on this" i will consider it irrelevant since yes he did do that great feat but not on the smash/all star universe.
Also the Gods that kratos killed are weak as possible.