I've been having pretty good luck with Liara and Garrus. I'm playing as an Infiltrator Operative.
I maxed out Liara's lift and throw abilities and man does she tear some s**t up.
I just did the Feros level and one of those Thorian Creepers jumped out from behind a wall and almost barfed on me and Liara blasted him with Throw point blank directly into the wall next to me. It was so damned funny.