David Letterman David Letterman

As CBS CEO Les Moonves said, "there's only one David Letterman" — and he's the onlyLate Show host the series has ever known. Letterman's impending retirement is still a year out, but that doesn't mean we can't start thinking about his eventual successor. Here is our top 10 list of picks.

David Letterman to retire from Late Show in 2015

6. Arsenio Hall
A familiar face to older viewers, Hall just returned to late night in September in syndication, and his show is distributed by CBS. Days before his show premiered, Hall says Dave personally called him to appear on Late Show.

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