I like to play the French, mostly because I know most white players hate to play against it. Plus the Sicillian is way more complex, and most e4 players are better prepared for the Sicillian than the French.
And while yes, the French starts out "closed", it rarely stays that way for long. Usually, you end up better in the center, I find.
i play the sicilian and the french with equal regularity these days.
Generally it's the sicilian vs. weaker players and the french vs. stronger players when I don't feel confident in my sicilian, or just for a change of pace.
The poison pawn winawer is the greatest variation ever.
edit: The poison pawn najdorf aint bad either.