I would like to see a “block” option for shield-users that uses Endurance and has the same time-frame of invulnerability as dodging. You would simply bind it to a key, and it wouldn’t replace dodging – it would just use the same amount of Endurance.
In other MMOs I always played heavy armor tank classes, but in GW2 even when using a shield, I have to roll in order to avoid damage (or use a longish cooldown block on ability #5). Rolling just doesn’t seem right for someone in heavy armor with a shield.