"Flip a coin. Heads pick Vim, tails pick Emacs."
That pretty much sums it up. Spending any time deciding between any of the two is just wasting your time, if you are serious about programming you will _eventually_ master both.
Starting to really dislike the text editor snobbery on HN.
At home I use TextMate for Python and Ruby, Eclipse for Java. At work, Eclipse for Java and Visual Studio for C#. I'm not 'serious' about my hobby and career because I like a different text editor to you?
But in all cases, just learning them will most likely improve your skills in many ways. Maybe you won't change from textmate to vim or emacs, but you will pick up many things from them that I believe will make your life easier.