Nashville - very good, bordering on great. I remember finding not all of the storylines compelling, and some of the music is so-so, but the overall effect is strong.
Battleship Potemkin - Eisenstein's montage style is compelling, but I'm not sure if it needs a whole film (even if it is a short one). If you've never seen it, I might suggest just watching the Odessa Steps sequence, which is the main reason it's famous. My contrarian nature wants to say that Eisenstein's follow-up, October, is the better film, though I have only a vague recollection of both so really can't back that up.
The Sixth Sense - I haven't seen this since it came out, so I have no idea if it holds up, or if it's worth seeing again knowing the twist. But I'll give it a tentative thumbs up, since I do remember it being overall effective.
Raiders... - Fun enough. There are elements that bother me (the incessant score, the creepiness of the Indiana/Marion relationship, Ford's Fordness the whole time) but the opening scene, the ending, and the big chase sequence are all great.
High Noon - pretty good. I'm not sure Gary Cooper is a good enough actor to elevate this into greatness, and I feel like Grace Kelly is a little wasted.
The Departed - sucks. Maybe could have been salvageable without Jack Nicholson, who mugs all over this thing, but I feel like the Hong Kong original is much better, and it's got a way better title too (Infernal Affairs).