Best alliance race for pvp

[Lacrave]

I plan on leveling a warrior strictly for pvp and stopping in either the 39 or 49 pvp bracket. Gnomes and dwarves seem to be the most pvp oriented based on racials, however i'm having a hard time deciding between the two. Here's the two racials with my take on them.

Escape artist
1 min cd, 0.5 sec cast
Removes movement impairing effects

I went gnome on my rogue and honestly can't imagine life without escape artist. I end up using it pretty much as soon as it comes off of cd to deal with frost mages or keep up with hunters when i think they are about to trinket. Getting kited will still be an issue for a warrior if there is no LOS nearby, so i think i could get a lot of use out of this paired with intercept (for example, EA out of nova then intercept).

Stoneform
3 min cd, lasts 8 seconds
+10% armor
Immunity to bleed, poison, and disease

The immunity to poison would pretty much be an I win button vs rogues in my opinion unless i get stunlocked. From what I've heard, undead shadow priests are pretty active in the 39 bracket, so the immunity to disease would help with devouring plague.

I am open to going with either a night elf or human if a case is made for them, but they don't seem particularly good when compared to dwarf and gnome. Any input would be much appreciated.

[DanielGames]

Gnome. You already have iwin buttons against rogues: overpower, rend, disarm, and hamstring.