Goddamnit, why do we get stuck with the scrub? I mean by virtue of the fact Jill only seems to hang out on her ship, since she only goes planet side for probes and not fun, I'd say she's probably a lightweight in the sex department. She doesn't strike me as someone who can fuck with the best of 'em, though she can probably talk a big game, I don't see her walking the walk too.
For such a matchup I'd put my money on the twins winning, unless Steele can pick up the slack in the sack.
Nonono, you let her take the heat and wear the twins out, thus getting valuable experience, and you come in for the kill and leave them all in a happy cum coma.