Whenever I want to log in, I need to set the focus to the "Email" field on the login page. I believe it should be the default: what else would we want to do besides entering our email, then password on a page that is specifically dedicated to logging in?
I currently use a TamperMonkey one-liner to do the job, but having it by default would be even greater.
EDIT 2022: it's been 6 years and still no autofocus. I curse the world every single day because of this oversight. I even started using the login page as an example of what not to do in talks about accessibility.