What class is engineering better for?

[WWL]

I know engineers can make guns, and ammo, which obviously are good for hunters to use. But even if I had a rogue with engineering, he could make the guns and ammo and give them to the hunter.

my question pertains to the items that you must be an engineer to use. Coming from a pvp standpoint, will a rogue or a hunter benefit more from BEING an engineer?

(aka I want to level engineering, and am wondering if it will be better to do so on my rogue or on my hunter. Assume that both are high level)

[Grimbold]

Coward Rogues

[muto]

Rogues not even a discussion.