Actually it does make a practical difference but I would argue in favor of the electric razor.
Ever wonder why it itches in those first couple of weeks if you decide to grow your beard out?
Look at that picture.
Shaving with a straight-blade razor basically leaves a bunch of tiny little hypodermic needles behind. When those suckers start growing out, they curl back into your face and start jabbing you, resulting in that annoying itching sensation.
If you want to grow your beard out, take my advice and make your last shave with an electric razor, it's a lot more comfortable.