I've seen several Resnais films, and a couple of which I found much better, albeit different. Last Year at Marienbad is very hit or miss, I've seen 5 star ratings for it, and even saw it listed in a book of the 50 worst films ever made, so its definitely polarizing. I would probably vote for Providence as my favorite fictional film of his, although his most accessible Mon Oncle Amerique is also well worth checking out. I'd like to eventually see Muriel again as I think I didn't devote the proper attention to it first time around.