If were taking nappa as 4000 then option 2 is mathematically out of question (since that makes goku x2 nappa whereas goku is only x2 recoome at around fp), since i dont follow super anymore i cant say on 3 so i can only say that 1>2.
Well we already know Goku vs Suppressed Nappa > Goku vs Recoome because the power levels are pretty much given. No idea about Goku vs Saganbo though, but it really looks like Goku vs Nappa.