For me, it a Dell E772p CRT with fullscreen @ 100hz
However, an LCD with a native 600p resolution is my second choice - my netbook has a 1024x600 which is quite useful for mobile VN goodness.
If you have an LCD/Plasma/OLED and are making a post, I encourage you to also mention what your screen's native resolution is.
DISCLAIMER: I intentionally use BOTH a CRT and an LCD in this "DSi XXXL" dual-monitor setup, (the LCD is 1280x1024) and recognize the benefits and detriments of both technologies. So PLEASE do not turn this into a CRT vs LCD flamewar. (of course if you were to include modern non-pentile OLED, then any arguments for LCD tech is pretty much moot.
