from pro-football-reference.com
........W L T Cmp Att Cmp% Yds TD Int Rate Y/G
Eli.... 11 13 0 383 726 52.8% 4335 24 22 69.3 180.6
Romo 7 11 0 303 500 60.6% 3387 17 19 76.3 188.2
so they're both under .500
Romo completed a higher %, but also threw more picks
However, Romo has the slight edge in both QB Rating and Yards per game.
I actually think Eli has been worse, now that I took the time to look it up. Again, Romo gets the pub b/c Dallas as a team has collapsed recently, and the Giants won a Super Bowl, but in reality neither QB has been good...