I like D4 because it seems to trip up people that have studied E4 'til they are blue in the face but haven't given the D4/D5 opening as much attention.
What is better, 1.e4 or 1.d4? Vote!
This topic gets posted every other day, I swear.
Indeed. I haven't been around here long but I must have seen five or six of these d4/e4 threads in that short period.
In answer to the OP. Neither is better or worse than the other. Both have merits and both should be known to you. Half the time you're going to play black. So half the time your opponent gets to decide, d4, e4, c4 or some other opening. You better be ready to play all of the above....
Depends on the position.
There is only one starting position.
Do you not see the winking smiley?
Learn to play them all. Then decide which suits ur own unique personality. The Russians swear by 1. d4. And they r the best!!
Depends on the position.
There is only one starting position.
Do you not see the winking smiley?
I did
Oh, ok then. Thanks for the education. I did not know there was only one starting position. 
But getting to that, the OP did not state Standard or 960 and there are, let me think, 960(!) starting positions ..... Hmmmmm.
I think f3 is better than e4.I proved it in this post
http://www.chess.com/forum/view/chess-openings/1e4-is-over-rated

e4