Who won?

Nicole and her daughter

Christina and her son

It was the war of the dueling babies!

Christina Aguilera and Nicole Richie both recently debuted their new infants to the world.

But which cover sold more????

Nicole's! By a lot!

Richie's cover is on track to sell 1.8 million copies. That's about 500,000 more than Aguilera's!

It would be safe to say that Xtina is a bigger star, but…

So, why did her pics sell less copies???

Why does there seem to be more interest in Harlow Winter Kate Madden? One magazine insider said part of it could come down to the moms’ fan bases. “Christina historically doesn’t do that well on covers,” said the source, who cites poor sales of her wedding photo issue in OK!, and less-than-stellar sales of her nude photo shoot in the January 2008 Marie Claire.

That might be true, but Nicole Richie doesn’t seem like an obvious home run on the cover, either. “There’s also a greater element of curiosity with Nicole,” the source conceded. “She’s gone public about being a heroin addict. Her boyfriend is covered in tattoos. By default, she’s got the more interesting baby. People want to see how she settles down. They want to see what kind of baby someone with her background has.”

Also, Christina married a "regular" fella.

Nicole, meanwhile, made sure her babydaddy was a celebrity, Joel Madden.

There's just more interest there!
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