A lot of things, if it's just as easy to do them either way, you might as well do them via best practise, like when I wire new duplex outlets, I always wire the hot side to the top terminal and the neutral to the bottom - why? Then both top and bottom have to run through one (and only one) tab to complete the circuit. Does it make a difference? Nah... but it's "best practice" and the way I've seen electricians do it.

Bren R.