Still leaning towards Miles.
Miles is already physically stronger than all of them by 2x at minimum and his venom attacks already bully a guy who is much stronger than him.
Also it is possible for Miles' venom punch to spread to nearby opponents aswell, if the titans are close to one another, they can get stunned from the Venom Punch aswell, allowing Miles to attack them.
If Miles gets TK'd and Raven could possibly be close enough to get hit from a
Venom Blast which is pretty big in size and it also fully heals Miles as well and escape (Assuming Raven isn't using her Tier 7 power and giga chad LS lol)
Also if somehow everyone gangs up on Miles and Miles is about to get his ass whipped, he has an ability called Bio Electricity Instinct that will allow him to use a devastating Venom Blast before he gets knocked out or die AND also fully heal, giving him a second wind in the battle. (though he can only use this once in battle)
Played a bit of MM, there's other things in Miles' arsenal for example he can turn his camoflauge into a blinding light similar to a flashbang if need be to distract foes.
Miles Gravity gadget will be useful to forcefully put the titans together in one spot and lining them up for a venom attack as seen
here around the 1:00 time stamp (This video also has the example of Venom Punch spreading towards nearby enemies)
His Venom Dash can like target foes across the room so if Starfire or Raven tries outranging, then Venom Dash shall help him close the range easily.
Also realised that It could be possible that Miles' Holo Drones should somewhat be comparable to Miles since the technology is the same as the holo drones Peter used to train Miles regarding combat, which could harm Miles. He could summon three of these in combat so it can possibly turn into a 4v5 and each can explode during combat.