Another good spec for guardian in PvP that is more melee-support oriented is the following:
The idea here is that the guardian gets both call to arms, ardent battle cry in order to buff their team’s weapon damage by 87% for 15 seconds every minute. To put it in perspective, that’s like giving bear shamans and barbs 2x frenzy damage.
Additionally, this spec uses Stand your Ground, a crazy strong anti-cc which gives your entire team knockback resistance for 10 seconds every 2 minutes. It’s very strong when focusing targets, as knockback is one of the best defensive and offensive CCs, and negating it has huge impact for your team. Additionally, most players don’t even know it exists, and will waste their KBs on targets when they have Stand your Ground up.
You do lose a little survivability with the protection from general missing. Storm strike is trash most the time, and investing so many points on it is a waste IMO.
When you rock this hybrid build, you need to call out your buffs. If your teammates all pop their weapon damage buffs with you, melee actually 1 shot everything with a single combo.
Rampaging horse + Call to Arms + ardent battle cry + rune of aggression = ~200% team wide weapon damage.
Also, you gain two more high frequency stuns, and a nasty snare on your sword and board KB. Stunning charge is a great tool for catching fleeing targets or interrupting people chasing your teammates. Shield Strike is another great quick stun (up every 45 seconds) which gives guardian the most CCs out of any tank. However, both require sword and board to be the active weapon, so it adds a lot more interactivity to the class with constantly weapon swapping to CC for teammates.