If startup speed is your main criteria, you want Opera.
Just how often do you start your browser?
chuckle This is the exact same thread I used to see years ago, except it was the startup time of vi vs. emacs. Being an emacs guy, I would generally remark something like, "yeah, I remember the ONE time a few months ago I started emacs when the sparc had to be rebooted for new memory."
There is no startup time in Chrome, it is always running even if you close it.