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Jay Leno may be a ratings flop at 9 p.m., but to NBC, his value is undiminished. Meanwhile, Conan O’Brien’s stock appears in decline as Peacock executives reportedly consider returning Leno to his old 10:35 slot. But where do late night’s other talkers rate, based on the quality of their shows and value to their networks? We take a highly unscientific look:

MOST VALUED, WORST SHOW

Jay Leno

– “The Jay Leno Show”

– NBC-Ch. 5, 9 p.m. (for now)

– Deposed king summoned to regain his throne?

Jimmy Kimmel

– “Jimmy Kimmel Live!”

– ABC-Ch. 7, 12:05 a.m.

– Formulaic talk show sprinkled with viral moments.

MOST VALUED, BEST SHOW

David Letterman

– “The Late Show”

– CBS-Ch. 2, 10:35 p.m.

– New late-night king reigns despite sex scandal.

Stephen Colbert

– “The Colbert Report”

– Comedy Central, 10:30 p.m.

– Conservative character seems omnipresent.

Conan O’Brien

– “The Tonight Show”

– NBC-Ch. 5, 10:35 p.m. (for now)

– Old show with new name, time slot lacks old success.

Jon Stewart

– “The Daily Show”

– Comedy Central, 10 p.m.

– Politics aside, it’s the smartest show in late night.

LEAST VALUED, BEST SHOW

Chelsea Handler

– “Chelsea Lately”

– E!, 10 p.m.

– Making quick strides in male-dominated arena.

Craig Ferguson

– “Late Late Show”

– CBS-Ch. 2, 11:35 p.m.

– May be the best late-night show you’re not watching.

LEAST VALUED, WORST SHOW

George Lopez

– “Lopez Tonight!”

– TBS, 10 p.m.

– Too soon to judge this high-energy show, the first hosted by a Latino.

Jimmy Fallon

– “Late Night”

– NBC-Ch. 5, 11:35 p.m.

– Leno rumor’s upside: This disaster is pushed even later.

Carson Daly

– “Last Call”

– NBC-Ch. 5, 12:35 a.m.

– See Fallon.

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