Quasar is the only one that would stand a chance on a serious 1 on 1 confrontation.
SS has also gotten an upgrade and so forth. If he fights smart and keeps Quasar off to pick out the others individually, he could take this. I don't see how this team is going to attack en mass and overwhelm Surfer. Surfer has wrecked teams bigger than this. Plus, they're not really a cohesive team, hence they've never fought together.
As a team they can win, but people need to stop building up all these guys.
Nova is now very powerful, but to say he will take any majority over SS is insane.
Quasar is the real threat here, SS should still take the Majority, but Q is a good fight.
Ronan would die fast, as would Super Skrull. In one on one SS takes 10 of 10 vs these guys.
That said i think the team might win 6-7/10 based mostly on Quasar.
If it were Ronan, Super Skrull and Nova vs SS I give 9/10 to SS.