I don't get this idea, of denying that it's all Joker-based, and saying that instead it's because he's such a great actor who has been in such great movies.
Clowning Around (1992) - Never heard of it.
Black Rock (1997) - Never heard of it.
Paws (1997) - Never heard of it.
10 Thing I Hate About You. (1999) - utter crapola
Two Hands (1999) - Never heard of it.
The Patriot (2000) - Utter Crapperoni
A Knight's Tale (2001) - An Abomination, a crime against cinema.
Monster's Ball (2001) - Laughable crap.
The Four Feathers (2002) - Heard of it, sounded boring, got bad reviews. *shrug*
The Order (2003) - Lame
Lords of Dogtown (2005) - Who cares?

They...skateboard? lol
The Brothers Grimm (2005) - Just sad.
Brokeback Mountain (2005) - Let me get this straight...It's a movie about two cowboys, who fall in love and revel in ****ing eachother secretly, and then, they can't anymore? Wow. Never was on my "Movies To Watch" list.
Casanova (2005) -
Candy (2006) - Never heard of it.
I'm Not There (2007) - Sounds mildly interesting. I'll never see it. Bob Dylan sucks. Oddly, his only album that I love was after he became a Christian, "Slow Train Coming".
The Dark Knight (2008) - AWESOME!!! CAN'T WAIT!!! THIS IS GONNA RULE!!! They don't have to waste time with the origin story and setting it all up! The JOKER!!

W-I-C-K-E-D!!! Look at the new armor!!
lol, they're mourning the Joker, not "one of the greatest actors of his generation".