The Voice and The X Factor went at it last night, and the NBC series came out victorious in their much-hyped direct clash. From 8-9 PM, The Voice drew a 3.3/11 in adults 18-49 and 10.7 million viewers vs. a 2.7/9 and 7.5 million for the opening hour of The X Factor‘s second-season premiere, which introduced new judges Britney Spears and Demi Lovato. Of course it was a somewhat Pyrrhic victory as The Voice shed 18% from its Tuesday night episode, but both shows had been projected to lose about a rating point from going against each other. In the second hour when it didn’t face The Voice, X Factor on Wednesday spiked by 41% in 18-49. Overall, it averaged a 3.3/10 from 8-10 PM, tying Voice‘s 8-9 PM performance for the top 18-49 spot on the night. (UPDATE: In the finals, X Factor was adjusted up to a 3.4, no info on The Voice‘s final ratings yet.) Still, X Factor was down 21% from its series premiere last fall and from The Voice‘s second-season premiere Monday when comparing fast nationals to fast nationals. Compared with the final numbers, it was down 25% year-to-year and lost 4 million viewers.

While Voice successfully beat X Factor for bragging rights, it didn’t do as well in its goal of boosting America’s Got Talent‘s performance finale, which posted a 2.9/8, down 24% from last year. It was followed by a preview of new NBC comedy Guys With Kids (2.2/6), which also was down from the series NBC previewed in the slot the last two years: comedy Up All Night (3.7/10) and drama Outlaw (2.4/7).

The only other originals on the broadcast networks, CBS’ Big Brother (2.0/6) and the CW’s Oh Sit! (0.4/1), did a good job weathering the singing-competition storm in the 8 PM hour. Big Brother was down a tenth from last week, Oh Sit! was even. Fox (3.3/10, 8.5 million viewers) won the night in 18-49, NBC (2.7/8, 8.9 million) was tops in total viewers.