Team MutantsFor several reasons, mainly because I think this team is far more tactical when it comes to combat. Sure, the gods are very well rounded(fast, strong...the works), but all that won't matter if they lack the strategy to utilize it.
As you know, Wolverine, X-23, and Warpath are no strangers to working together, so they instantly have the chemistry down. The following is one possible scenario I've come up with, to help explain the reasoning behind my assumption:
Wolvey, X-23, and Warpath stick together while Sabertooth scoffs at them and tries to do things his own way, while Deadpool cracks a situational joke and starts using pick up lines on Valkyrie while continuously teleporting around her as she pointlessly tries to look for the ko(she's not happy at this point).
Sabretooth gets his ass handed to him in a basket and a moral compromise ensues as a result of Wolverine and the rest of the team's urges--thus the divided faction molds into one, united team with a common cause😖urvive.
At this point, the team realize that they need to think of something, and quick. To buy some time, Wolverine, assuming the role of squad leader, directs Deadpool to drop down some suppressive fire (in the form of grenades), temporarily blocking the gods' line of sight. Like I said before, the Mutants are far more tactically and strategically superior to their godly opponents. Their best option, when it comes down to taking out a god, is to concentrate and overwhealm one at a time. Like I said, they're very well rounded, but even gods of their magnitude cannot overcome the combined might of 5 mutants of such caliber.
Realizing each others' assets and what their unique abilities can bring forth to the table, the team quickly dispatch Deadpool(who takes up a supporting role) to come out of cover and continuously pester the gods via using a hit and teleport technique which further enrages Valkyrie. Step 2 for the mutants is to have their "muscle" (Warpath and Sabretooth) use their combined might to grapple and essentially hold down one god at a time while Wolverine and X-23 deliver the fatal, finishing blows. As long as the blades can penetrate, it's over and done with. Not even the Warrior's Three can regenerate lost limbs or organs, so they needn't worry about them coming back for round two.
Fandral(whom the team see as the biggest threat) is called out by Sabretooth, who takes advantage of Fendor's honorable nature and challenges him to a 1 on 1 battle. Of course, Sabretooth has no intention of taking him on his own and the team initiate step 2(Warpath comes out and assists Sabretooth in subdoing/grabbing Fendor, while Wolverine and X-23 puncture, slice and dice.) Due to the nature of Fandrals impressive peripheral vision, he has great ability when it comes to seeing multiple strikes coming at him simultaneously during a battle with numerous foes. But in my opinion, Sabretooth could always gauge Fendor's eyes, seeing as he has an unconventional, dirty fighting style. Of course, he doesn't really know a thing about Fendor, so that wouldn't cross his mind.
If the mutants manage to take Fendor down, than it's time to isolate the next god. Deadpool creates a smoke haze by blasting the ground with his grenades. Sabretooth uses his keen sense of smell to locate and isolate his next target, and again repeats the process of step 2 until the Warrior's Three have been eliminated and only Valkyrie remains. By now, Deadpool has been knocked out about 17 times(11 of which were probably Valkyrie) but always manages to recover quick enough to not retract the gods attention from him.
Conclusion:
Valkyrie(who assumed her counterparts were off battling the other mutants), is the last god remaining. She looks around, only to see she is outnumbered 5 to 1. Deadpool confidently makes a proposal something to the nature of: if they went out on a date, she'd be spared. Valkrie, who'd rather die than spend another second listening to Deadpool, slits her own throat. The end 😆 😂 😎