BTW if I was never exposed to the comic version of a character I don't feel I can express an opinion about the translation. A good example would be BLADE. I've seen all three movies but I did not read any comics.
Wolverine – Hugh Jackman 100%
Spiderman – Tobey Maguire 90%
Judge Dredd - Sylvester Stallone 11%
The Tick - Patrick Warburton 85%
Arthur / The Moth - David Burke 95%
Professor X – Patrick Stewart 100%
Storm - Halle Berry 79%
Cyclops - James Marsden 66%
Jean Grey / Phoenix Famke Janssen 79%
Rogue - Anna Paquin 61%
Swamp Thing - Ray Wise / Dick Duroc 36%
Catwoman – Halle Berry 16%
The Phantom - Billy Zane 68%
Elektra – Jennifer Garner 12%
The Human Torch – Chris Evans 89%
Mr. Fantastic - Ioan Gruffudd 63%
The Thing - Michael Chiklis 76%
The Hulk - Bill Bixby /Lou Ferrigno 71%
The Hulk - Eric Bana / Some CGI Artists 63%
Thor - Eric Allan Kramer 2%
Dr. Strange - Peter Hooten 57%
The Invisible Woman - Jessica Alba 78%
Superman - George Reeves 75%
Superman – Christopher Reeve 92%
Superman - Brandon Routh - 89%
(Don't watch Smallville, didn't watch Lois and Clark FYI)
Supergirl - Helen Slater - 21%
Nightcrawler - Alan Cumming 90%
Nick Fury - David Hasselhoff 0.001%
Daredevil – Ben Aflek 36%
Hellboy - Ron Perlman 87%
Batman – Michael Keaton 68%
Batman – Christian Bale 89%
Batman – George Clooney 35%
Batman – Val Kilmer 75%
Batman – Adam West (off the chart

Robin - Chris O'Donnell 65%
Robin - Burt Ward (off the chart

The Punisher - Dolph Lundgren 1.5%
The Punisher - Thomas Jane 76%
Captain America - Matt Salinger 0.43%
The Flash - John Wesley Shipp 26%
Dick Tracy - Warren Beatty 60%
Spawn - Michael Jai White 63%
There are plenty more that I've negleted to mention. Fill em in.