I wouldn't.
EA is in partnership with Sony/Microsoft, more Microsoft but still, EA's new ignite engine and it's features won't be available on PC/Xbox 360 or PS3. All three are capable of running the new engine and the PC is greater than any next gen console anyway.
So yeah, to effectively get FIFA 14 you have to be an owner of the new consoles otherwise you're getting FIFA 13 with some kit updates and a tiny amount of 'new' features, new meaning old rehashed stuff.
Here:
http://en.wikipedia.org/wiki/Ignite_(game_engine)
Note that the Ignite engine seems to be a Next Gen exclusive.
On an Xbox note, I need to see more reasons to buy it for me to actually make a purchase, a new Gears trilogy would have me get it.