Throw Glaive, 50% slow for 6 seconds, 10 seconds cooldown.
VR - 3 seconds 70% slow, 25 seconds CD. VR is a skill used for displacement, not to "slow" the enemy.
The only real slow is Throw Glaive, and is a talent that makes you choose between free stun with less CD and that. There're very few that will take Master of the Glaive for PvP in that tier.