Armed predator. Here's why:
-Shoulder cannon would rock the T1000, it may not take just 1 shot, but if we're going by AVP, it packs a plasma wallop (plasma > liquid metal)
-Queen would put up the best fight, shes huge, ridiculously strong and fast. The disc would be his best weapon on this case - cutting her up from a distance. Worst case, he resorts to the plasma canon - upclose shes too big to miss
-t101 c'mon... all his vitories are b/c of dumb luck. Use the net to pin him down (if not cut him up) and spear him
Unarmed i'd say queen=t1000>predator>101
The queen would woop on the t1000 as long as she doesn't take a mortal wound first. Once her limbs get cut, she'd flick her blood at the t1000 and melt it.