The playoff record between these two is no contest.
Tony Romo's playoff record is 1-3.
Romo and the Cowboys lost to the Seattle Seahawks back in the 2006 Wild Card round 21-20 and you can put a lot of the blame on Romo for that game.
Romo botched the snap of a potential game-winning field goal by Martin Gramatica that would have won the game for Dallas, but instead cost them the game.
Romo and the Cowboys also lost to the Giants in the 2007 divisional round 21-17, and while not all the blame goes to Romo, he made the biggest turnover of it.
The Cowboys were driving and attempting to win the game, and Romo lobs a pass in the air towards Terry Glenn in the end zone, but was picked off by R.W McQuarters to end the game and send the Giants on to the NFC Championship Game.
In 2009, Romo finally won his first playoff game against the Eagles 34-14, but then the following week, the Cowboys were upended by the Vikings 34-3 in a game that was never close from the beginning.
Eli Manning's playoff record is 8-3.
Two of the three losses Manning suffered were at the hands of the Eagles in 2006 and 2008. The one in 2008 was even worse because the Giants had a first-round bye, had home-field advantage as the NFC's No. 1 seed and were beaten 23-11.
In the other one against the Panthers in 2005, it might have been one of the worst games in Eli's career, as the Giants were defeated 23-0 and Manning threw three picks with no touchdowns.
Despite those losses, Manning has led the Giants to two playoff runs ending in Super Bowl victories.
In 2007, the Giants knocked off the Buccaneers, Cowboys and Packers, then defeated the Patriots in Super Bowl XLII.
In 2011, the Giants knocked off the Falcons, Packers and 49ers, then again defeated the Patriots in Super Bowl XLVI.
Manning also has two Super Bowl MVP awards to go with his playoff record as well.
Playoff wise, Manning is superior to Romo.