On iTerm2 my windows are full-screen, black background, zero border or window decorations. I cycle between windows with cmd-` it switches instantly from one full-screen terminal to the next. It's what to me a console should be.

Every terminal app I've tried on Windows or Linux insists on having a goddamn window border. I don't want even a single pixel of border.

And yes, this is enough to make me a die-hard iTerm2 user.

(users care about little things more than developers sometimes realize)