Just my opinion:
Your weapon set up is a decent choice overall. One main weapon for damage/cc (Hammer) and the secondary is for utility/defense over damage (Sword/Shield).
Your gear is going to be a huge influence on how effective you are in the roll you want to play. I can tell you now that a Warrior is not great at stalling. I know some will try to tell you Warriors are “awesome sauce leet cakes” that no one else can touch, but trust me… there are other professions that can stall better. Now, your strengths for your build lie in your heavy crowd control with your Hammer.
The one weakness of your build is that while you try to control a group you can be easily interrupted at very critical moment. I would HIGHLY SUGGEST Balanced Stance utility skill somewhere on your bar. That way, when needed, you can land your Earthshaker or stomp when you need it without worry of being pushed/pulled off.
Also, I would suggest dropping your “20% damage while under 25% health” trait. If you fall below 25% health you are more than likely dead anyway so the trait is near useless in a giant battle. Instead I would swap it out for one of the best Warrior traits in the game, Leg Specialist (trait I in the tactics line). That makes your Hammer three into a massive cone immobilize. Very awesome against those trying to run form you (it will also give your utility secondary weapon set that much more).
Another trait I would remove is trait one of the defense line “Embrace the Pain”. You will not have trouble gaining adrenaline. You will be smacking plenty of people with your cleave. I would drop that trait in favor of “Missile Deflection” trait V. Since you have a shield and you want to disrupt the zerg as much as possible this trait is killer against all the ranged folk in WvW. This trait will also allow you to reflect the specter auto attack of a Mesmer and create a clone of yourself ;D. It will also help in case you need to run when everyone starts to spam their immobilizing shots and cripples, you will reflect them all back on the zerg that is chasing you.
On to utilities. I understand “Stomp” is fun, but “Fear Me” is actually a much better skill in my opinion. It is instant and usable in any state. So you can use it while you are stunned, unlike stomp.
I would swap out “Shake it Off” for another utility to be honest. I know a lot of people do not like the “Signet of Stamina” but I actually prefer it. Not only will it wipe ALL conditions every 45 second, but it will also give you 33% faster dodge recharge. Which means you get a dodge every 7 seconds rather than 10, which is a pretty big deal.
The main deal I would like to point out after all of that is…. the idea in Guild Wars 2 is not to “Soak up Damage” <—-that is a big no no. That will get you killed. The idea in Guild Wars 2 is the “DENIAL OF DAMAGE”. Dodges, blocks,evades, line of sight, etc. Those things will take you a lot further in WvW than trying to take a shot to the face.
Best of luck with your build and hope it helps.
. I have to say that I still enjoy my Warrior in PvE for Guild Wars 2 to some extent, but it makes me sad every time I go into PvP (which is where I would like to be). I think Soundchaos got it right for me :/; dived to deep to swim back up now.
