All I use is firefox as well. Same reasons for me with chrome, except I am a power user and I need my toolbars for the stuff I do, the no toolbars in chrome is nice for a home user yes, but not for a power user.
But both are very good, follow standards and the newest versions work on every version of Windows and non Windows alike. IE never followed html and css standards because they where the only game in town once the killed netscape. So now IE is trying to catch up on the standards but you dont get the newest versions on older OS's, which if you want your browser to rule is a big mistake.
They need to but cant rebuild IE from the ground up. Why? because of backward compatibility, which they still have a hard time with, so they give you compatibility mode. Thats the problem when you dont follow standards, you paint yourself into a corner.
While IE 11 is better on standards and security, but they cant or wont let it run on older OS's. They tie IE into the OS to much and reply on the OS to much, where firefox and chrome try to stay away from needing anything on the OS other than hardware (Sound and Video). They dont require certain services or files in Windows like IE does.
My Simple Port Forwarding program uses the IE control to work with webpages. Firefox and chrome dont offer anything like that for programmers, otherwise I would had used firefox in it a long time ago.
Shane