Leno rises as others fall.
I used to watch Letterman religiously, loving his sardonic wit, his "grumpy old man" sarcasm. However, all that changed. I don't remember when--perhaps it was during the 2008 presidential campaign of Obama. The date's not that important. What matters is that this once very funny guy has turned into nothing less than a left-wing partisan hack, totally one-sided. Bush has been out of office for 4 1/2 years now, and Letterman still makes him the butt of his jokes, blaming him for the country's ills.
Example: I was flipping channels last night and caught Dave's monologue. In it, he was making fun of Bush, showing Bush in Africa with the natives (W. has been there with wife Laura the last several days doing charity work), mocking Bush's attempt to do native dances. Letterman labeled the bit "This day in a presidential moment". Uh, Dave, Bush isn't president anymore, so how could it be a "presidential moment"? Besides, who gives a rat's patootie?
Really, Dave, these jokes, all of them slamming Republicans, have gotten sooooo old. If you're going to be political, something I do not mind at all, at least be bipartisan and go after both sides, something your competitors do on a more frequent basis.
Honestly, Letterman used to be the funniest night talk show host. (He was actually Johnny's personal choice to replace him, but NBC decided otherwise back then.) I watched his show regularly over all the others. I haven't done that now in 4 or 5 years, except for one, single show of his--his last show before Christmas, when he has Darlene Love on to sing her famous rendition of "Christmas". That annual show is one to which I look forward every year.