I think we have not debated on this yet, so here it is.

So I've lately watched The Silence of The Lambs as well as Manhunt.
Manhunt scared the hell out of me. The Silence of The Lambs was not all that scary. I mean, the boss' death was just.. "That's it?" One bullet in the head and done? Seriously? However, I believe that the movie is just great, in all seriousness. It is not a thriller. It's a psycho-thriller, as a matter of fact. So what we're going to debate on in this topic is/are your favorite (psycho-)thriller(s) of all time. Discuss please.

Oh by the way, I almost forgot one thing: "Phone Booth" is one of the best psychological thrillers I have ever seen. Just saying.

my fave thriller is the 1st transformer movie

Ive seen a load and to me by far the best one is "disturbia"

Hmmm. Thrillers.
Well, the song by Micheal Jackson is obviously, very good. *is shot*

Aside from that, I haven't seen many horror films recently.

Please TempestTheory, do not mix up Thrillers with Horror movies.
They are not the exact same thing in the slightest.

Try watching "I Spit On Your Grave" and "Last House to the Left" (old versions from 70-ies, not the remakes). Surely, I can't think of any better.