Scourge is definitely only slightly below Kun or Dooku as a duelist, and Satele is a class lower than them, but still comparable. Savage can offer a small fight to either.
Scourge & Savage can defeat either Kun or Dooku together, while Satele & Sirak die to either after a good fight. It all depends on who dies faster; Satele&Sirak, or the opponent of Scourge&Savage. It's quite a toss up.
Scourge & Satele stomp the opponent before Savage&Sirak die to the second one. Team 2 wins then.
Satele & Savage defeat anyone in a great fight; Scourge&Sirak die to either in a great fight, Sirak is just too weak. Toss up again then.
So, as you can see, in most cases it's a toss up except 1 variant. Team 2 for 6/10 at best.