Are arms warriors a good starter class for arena??

[quez]

Warrior have lots of things that are really neat, but fact of the matter is: warriors don't need them and do well without them. Additionally warriors don't have *that* many hotkeys. comparable to a mutilate rogue, a LOT less than a shadowdance rogue and about half as many as a priest.

I haven't played a mut/shadowdance or priest at a serious level, I have though tried em out a couple of hours on friends accounts, and I have a hard time to picture priests having twice as many keybindings as a warrior

The abilitys i have keybinded are:
Charge
MS
Hamstring
Overpower
Pummel
Execute
Thunderclap
Piercing howl
Demo shout
Battle shout
Commanding shout
Intercept
intervene
Intimidating shout
Heroic throw
Shattering throw
Blood rage
Berserker's rage
Enraged regeneration
Bladestorm
Sweeping strikes
Disarm
Spellreflection
Shield slam
Sunder armor
Shield block
Shield wall
Revenge
Whirlwind
Shield bash
Slam(Veeery rarely used, but it's there)
Heroic strike

Well, those are the abilitys that I frequently use in arenas(May have forgotten one or more), and I also depend a lot on the following macros:

Equip 1h+shield -> Def stance, press again -> Spellreflect
Equip 2h & battlestance
Equip 2h & Berserker's stance
Intervene @healer
Charge @focus
Intercept @focus
Pummle/shieldbash @focus
Charge & Cancelaura bladestorm
intercept & Cancleaura bladestorm

That sums up to 41 abilities/keybindings that I use in most of my arena games, I have a really hard time seeing a priest use 82 different keybindings.
(especially when priests have only 30 abilitys to use in the arena, I'm including buffs like fortitude)

And on-topic: It's not the easiest class to begin with, and probably not the hardest one either. But practice=Success.

I believe it's pretty easy to reach a fairly OK skill-level as a warrior, but probably one of the harder classes to play flawless.

[K4ge]

I said about.
But I'll agree with you: MS has slightly more keybinds than mutilate, just checked it. However: quite a few of those are very rarely used... things like challenging shout (I mean come on: who doesn't have the pet on passive) etc.
But my point still stands: a warrior can be played very well, but relies a LOT less on finesse than other classes, because they have a relatively high innate survivability and decent rng burst/cd independent burst.
Any class is hard to play at the highest level, and you'll never hear me say something different.

Priest just has a lot of binds, because you also need self-cast for every spell. Usually you can just use the alt modifier, but it doesn't always work.

[Furcea]

Forgot to ask how should I gem (str or Arp), key talents in arms and glyph if I do end up doing this??

Do not gem for ArPen if you don't reach like 45% passive ArPen (and thats without the set bonus) and you have Grim Toll/Needle Encrusted Scorpion.