Hey man, sorry I can't explain to much in detail with this, but this is my preferred build for support warrior. My face is swollen with an abcessed tooth that literally has me on my knees in pain so, I'll go into as much detail as I can but its pretty straight forward.
Build:
http://www.intothemists.com/calc/?build=-ss-70;0VKkN0_47L-60;9;49OJ-E4;046-09;24;0I-k3;2ZF18ZF185BX
Pros
1. Very good CC capability, 2 knockbacks (one being AoE), a knockdown, a AoE stun, an a AoE fear.
2. Good sustained damage.
3. High Crit rate, triggers crit based effects: Sigil of superior air procs, vulnerability, and bleed.
4. Sustained Condition removal via shouts and mending.
Cons
1. Lacks high-end burst damage.
2. Lacks stability boon and some oh sheet buttons so to speak.
I'll see about going into more detail so to speak later, also please do note that if anyone has paid any attention to my activity alone, you'll notice I've been gone for quite sometime, so if there has been any changes since last I messed with and studied Warrior builds, forgive me if what I post is dated. Also right after posting this I'll update my AFK post.
I also have a mace / Shield build I like to use, sort of a control / defense build.
Build:
http://www.intothemists.com/calc/?build=-sBxF-0-VKFM0V4sK-60;9;4T-T-946A;1168;14;8OZG5OZG56gx
The first three abilities you get from the Mace are weakness, block, and a daze. Shield gives you a stun and a block. I like Warhorn as the weapon swap, the Charge ability grants swiftness. This ability also benefits nearby allies and cures chilled, crippled, and immobilized. An then the Sword is personal preference with a bit more mobility due to a Leap, and then more target up time due to the cripple.
For utility skills you have Bull's Charge, its beautiful, charge + knockback. Then Throw Bolas, throw and immobilize your enemy. Then kick for a nice little push back. These are all physical utilities that will be buffed through traits. (Physical Training from the Strength Trait, last one)
Again as above, I haven't played in sometime, so I'm simply assuming these are all still gtg and not out dated due to patches and changes to skills and blah blah blah.
Anyways, have fun! Warrior is for sure a great profession.