Elemental pvp trinkets

Hello fellow shamans,

Im looking for 2nd trinket for pvpfun (bgs) mostly, meaning hard burst and more damage instead of the removing imparing effects.

So 1st trinket is the cataclysm spellpwr on use..
But for 2nd, there few intresting:
-http://cata.openwow.com/item=73497
Resillience 484 and 1419spellpwr on proc

-http://cata.openwow.com/item=77995
99int for 10sec stacking 10x

-http://cata.openwow.com/item=78000
517int and shadowboltvolley prc
or
-http://cata.openwow.com/item=69110
458int and lightning proc

So question what would be yourre toughts/favorit?
My preference go to Pulse lightning,
but the pvp trink will give more spellpower only problem with that is, its proc and have to watch 2procs already (cloaktailor/power torrent)
Will of Unbinding seems meh by the time you get 10stacks the target will proly be dead
Cunning of the Cruel gives more base int, but shadowboltvolley is not so good in rare 1vs1 or 1vs2 moments. Also shodowbolts dont get any bonusses like the Pulse lightning witch benefit from +% naturedamege tallents.

Sorry for my spellings, greetings psy