Yes, I've seen all the shows currently on Broadway, at least occurring to my latest Playbill. Sad/weird. Here they are ranked, from best to worst:
Truly Amazing Theater.
Company
Avenue Q
Great.
Jersey Boys
Hairspray
Rent
The Lion King
Spamalot
The Drowsy Chaperone
The 25th Annual Putnam County Spelling Bee
A Chorus Line
Good/Respectable.
Spring Awakening
Grey Gardens
Chicago
Les Miserables (a great musical, but the current incarnation has no heart. Though I haven't seen it with Lea Salonga yet)
LoveMusik
Legally Blonde
Beauty and the Beast (earlier in its run, it would have been higher up. But it's really run out of steam.)
Meh.
Curtains
110 in the Shade (yeah, I ended up buying tickets anyway.)
The Color Purple
The Pirate Queen
Wicked
Mary Poppins
Don't Waste Your Money!
The Phantom of the Opera (WHY WON'T IT CLOSE)
Mamma Mia!
Tarzan