Are Elemental Specs viable PvP/PvE?

I PvPed in TBC with Evertras's 30/31 Ele spec, and had put together an Ele spec to try here: http://db.vanillagaming.org/?talent#oZVgMzf0uZVhGhRbt
I remember that Elemental play was quite dependent on INT and spell damage on gear, but I only have meaningful experience with TBC itemization, as my Mage did not ding 60 until 1.9. I was also planning on leveling my new Mage with this spec. It seems viable for leveling, albeit with frequent drinking.
My alternative was a standard 17/34 Arc/Frost spec, which I also planned to PvPvE with (This guy is going to be my PvP bitch), but I wanted to be a little different, if doing so won't amount to shooting myself in the foot. What do you guys think? Is this spec viable @ 60 with current/future itemization? Is it workable for leveling? Am I giving up too much by not going 17/34?
Many thanks in advance!
I remember that Elemental play was quite dependent on INT and spell damage on gear, but I only have meaningful experience with TBC itemization, as my Mage did not ding 60 until 1.9. I was also planning on leveling my new Mage with this spec. It seems viable for leveling, albeit with frequent drinking.
My alternative was a standard 17/34 Arc/Frost spec, which I also planned to PvPvE with (This guy is going to be my PvP bitch), but I wanted to be a little different, if doing so won't amount to shooting myself in the foot. What do you guys think? Is this spec viable @ 60 with current/future itemization? Is it workable for leveling? Am I giving up too much by not going 17/34?
Many thanks in advance!