Is the F Train The Worst Subway Line In the City?

Yesterday, it was the heroin addict. Before that, it was the bedbugs in the booth, the service shut down, the rat crawling on the sleeping homeless dude's face (was that the F?), the flasher in the stairwell, the....

And this morning? The fucking grossest sighting yet, I would argue! Wherein, some old, crusty nose-picker goes in for some excavation and then proceeds to wipe his boogers all over the subway car.

My friend Katie says she's seen worse. Oh you cynical New Yorkers!

But, really, is there a subway line worse than the F? The Straphangers Campaign has noted a conspicuous decline in F train cleanliness. You?