1600x900 fullscreen, with a crappy computer but good enough to get a constant 120 FPS. (Thank the lords xD)
PremiumRich wrote:
Is it technically easier to play in a small window rather than full screen? I find faster songs have beats all over the screen and I have a big monitor...
Well, it entirely depends on your preferred mouse sensitivity/tablet area, but it definitely is harder for the most part. Since you're able to move your mouse/tablet pen a smaller distance, you technically also have a smaller success area (The hit circle) due to the reduced overall size of your play field. It's basically just like raising your sensitivity or reducing your tablet area in a more unique way to get the most comfortable gameplay setup, but if you're not used to it, stick with your current resolution.
TL;DR - Definitely harder unless you're willing to get used to it.