Worst romantic comedies ever?
And Gigli is too obvious
Runaway Bride
You've got Mail
French Kiss
Nika
I've got a Ruby Red Desire
Like a Virus
Like My Last Hope
I actually thought "You've Got Mail" was very good. So, I don't think that qualifies as "worst" at all. "Maid in Manhattan" might though.
As a general rule w/ romcoms though, even the bad ones are good, in that they're all at least fun to watch---most of the time.
Please excuse typos/funny wording; I use speech-recognition that doesn't always recognize!