Late night TV returned last night, with Jay Leno and David Letterman both back in their pricey, respective studios. As proprietor of The Late Show, Letterman came armed with writers and without violating the WGA strike. Leno's writers are still picketing, but the host claims to not be violating WGA rule by writing his own material. The WGA has yet to comment on the situation.

So, who won the late night race last night: The Hair or the Chin? Radar offers this breakdown.

Getting Started
Letterman: The show begins with a cameo intro from Hillary Clinton, who displays a surprisingly adept sense of comic timing.
Leno: No cameo from Hillary. Girlfriend would never cross the pickets.
Winner: Letterman, handily.

Opening Monologue
Both monologues featured talk of the strike and jokes about rehab and the awards shows
Letterman: Dave took to the stage amidst a sea of dancing, Rockette-like picketing girls, and he was sporting a thick gray beard!
• Strike talk: "You're watching the Late Show, the only show on the air now that has joke written by union writers...I know you're thinking to yourself right now, this crap is written?"
• Rehab joke: "Ladies and gentleman, it took two months, but I'm finally out of rehab."
• Award-season joke: "Because of the strike, many of the awards shows may be cancelled this season, so something good has come of all this."

Leno: Jay took to the stage with no pomp and circumstance, or new facial hair. His original chin was still intact.
• Strike talk: "I was on the strikeline everyday.... We had to come back because we had essentially 19 people putting 160 people out of work. We continue to support the guild."
• Rehab joke: "The Golden Globes is the largest gathering of stars anywhere, outside the Promises rehab clinic in Malibu."
• Awards season joke: If you're not familiar with the awards season in Hollywood, it runs from January 1st to December 31st, every year.

Winner: As much as we want to support Dave and the strikers, Jay was funnier, looser, more casual. Dave was slow and bordered on the self-righteous. We'll have to give it to Leno.

The Big Guest
Letterman: The Late Show booked Robin Williams, a tragic, inexplicable choice, especially considering that they should be having the pick of the stars at this point. Much of their exchange featured Williams doing a Tourette's Syndrome fit of voices and impressions, ranging from a Civil War reenactment to a rabbi and a mullah. He had Dave in stitches. We were in pain. When not in character, Williams talked about his travels to Iraq and entertaining the troops. We wondered if our men and women in combat hadn't already been through enough.
Leno: The Tonight Show had Mike Huckabee, who managed to trade jokes with Leno with ease. He even played the bass guitar with the band, maintaining as much dignity as a presidential candidate can when playing an instrument on national television. Still we sort of cringed when discussing his weight loss, Huckabee said "we don't have a health-care crisis as much as we have a health crisis." Can't we—don't we—have both?
Winner in this category: Leno. Having Robin Williams as a guest is an automatic loss. He is where funny goes to die.

Audience Participation
Letterman: Dave fielded questions from the audience about the writers' strike, and joked about their lives.
Leno: Jay fielded questions from the audience not about the writer's strike, and they fawned over him and Huckabee.
Winne: No one. The banning of audience Q and As should be on the list of strikers' demands. They must be stopped.

Extras Extras
Letterman: Dave had striking writers from various shows present his Top 10 List. The writers' delivery of the jokes proved funnier than the jokes themselves. He also interviewed a member of his staff, and showed photos of her new baby, then filled time with some dancers who were twirling balls. Seriously.
Leno: Jay made a pepper steak with Wham-Bam Chef Emeril. He also showed a "Year in Review" Jib Jab cartoon.
Winner: Tie. Watching someone take a bite of a delicious pepper steak is more entertaining than pictures of stranger's babies, as are most things. But, even when it's mediocre we have a nostalgic affection for Dave's Top 10 List.

Musical Guests
Letterman: Lupe Fiasco with Matt Santos
Leno: Chingy, featuring Amerie
Winner: It's a minor category, but he'll have to give it to Leno. Chingy is a more interesting performer and Amerie was wearing a really sparky dress.

Grand prize winner
Hate to say it, but it's scabby Jay Leno. But, there's hope for tonight's episode of the Late Show, which thankfully does not feature Robin Williams. Bill Maher and Ellen Page are tonight's guests.