Mine is top right. It's closer to the scroll bars that way. I use commands for most menus as well as minimizing/hiding apps.

My screen is also wider than it is tall, so there tends to be some extra space to the left & right that might as well be functional. Putting it on the bottom would be like shrinking the size of my screen by an inch.

I also keep it fairly small in size. But it is not hidden, I don't want to wait a millisecond for it to load if I want to click on it.