Personally, I'd say Rondo outplayed him, but Teague looked less sloppy. It isn't always the person who looks better doing what they do that always ends up with the better overall game. Plus, you also have to give an extra nod to Rondo for the win.
The way I always saw things, is that, if you come up big when it matters the most, and it ends up leading to a victory, then you have to get a great deal of credit, because nobody usually cares to remember or give much credit to how well someone played in that game where their team lost.
Jordan had some of his most amazing games in playoff series that were lost, but those aren't really the ones that are remembered. The primary thing Rondo did bad tonight, is that he held the ball too long at times, and we didn't get into our offense. I think when Rondo is giving up the ball to other people much earlier, or constantly lurking and picking his spots and disrupting the other team's defense is when we are at our best offensively. Rondo had a better team game; Teague had a better individual game.