It's one of the TV season's newest - and already biggest - battles, so who won the first round of the ratings war between Grey's Anatomy spin-off Private Practice and the revamped Bionic Woman? It was rather close.

Let's just say that no matter how tough Jamie Sommers (Michelle Ryan) may be with her acute hearing and super-human speed, she's still coming up a close second to Dr. Addison Forbes Montgomery (Kate Walsh).

But the bottom line is that ratings for both shows' debuts were very successful - so much so that determining a winner is a very difficult task.

While Private Practice took home the overall bragging rights thanks to its 14.2 million viewers, helping ABC win the night, debuting with a 9.7 rating / 15 share at 9 p.m., Bionic Woman actually scored higher with the 18-49 demographic that advertisers covet. Bionic Woman brought in 13.6 million viewers total.

The third season premiere of Criminal Minds finished third in the time slot for CBS, followed by Fox's Kitchen Nightmares and The CW's Gossip Girl.

Can Private Practice and Bionic Woman keep the big audiences their debuts garnered? Regardless, it looks like these ladies have some staying power.

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.