I absolutely love Ridley Scott. He is easily my favorite director of all time, and I have an incredible amount of respect for the man. I'm in the process of Netflixing every movie he's made (minus 1492 which hasn't been released in R1), but I've seen quite a few. This would be my list of all of Scott's films I've seen, best to worst:

Blade Runner (Final Cut)
Kingdom of Heaven (Director's Cut)
American Gangster
Alien (Theatrical Cut)
Gladiator (Theatrical Cut)
Blade Runner (Director's Cut/Workprint)
Legend (Director's Cut)
Alien (Director's Cut)
Kingdom of Heaven (Theatrical Cut - I actually liked it a lot when I first saw it, but fell in love with it when I saw the Director's Cut)
Black Hawk Down
Hannibal
Blade Runner (Theatrical/International Cuts)

On my list to see (* next to the ones I own/currently have through Netflix):

The Duellists*
Legend (Theatrical Cut)*
Someone to Watch Over Me
Black Rain
Thelma & Louise
1492: Conquest of Paradise
White Squall
G.I. Jane
Matchstick Men
A Good Year

Not interested in the Extended Cut of Gladiator, but Scott is easily the only director that I can honestly say I want to see all of his films.

And I can't find any indication that 1492 was ever released in R1 - where did you find it, Dayv?