My favorite was Novak.........she was a real spitfire!!

Alexandra Cabot and Barba...........

@themightykazoo said:

Which ADA did you like the most from SVU? Unfortunately we can't use Buchanan even though he is such a thrilling attorney he is a bad guy.

I loved it when so many of the actors from 'The Wire' would appear on one of the Law & Order shows (sometimes more than one would appear in an episode). Buchanan played Sgt. Jay Landsman on 'The Wire'.

As for the original question, my choice is Alexandra Cabot.

Cabot with Barba a close second.