The tooltips aren't really helpful unfortunately. If you look in your disciplines window at the passives you get for leveling, you will see that as you level your abilities gain dots and vigilant thrust gains the spreading mechanic. It would be nice if the tooltips updated accordingly, but it is what it is.

From what I've played Guardian/Vigilance, Juggernaut/Rage it's really up to playstyle. Vigilance/Vengeance seems better for sustained AOE damage through its DoTs and their spreading. I imagine that would make healers really sweat. Rage/Focus seems more aligned with finishing off those with low health or by picking off stragglers. I feel like it has more mobility and explosive burst. It also seems to have a more complex rotation/priority system of the 2 and you will end up starved for rage/focus if you don't use Enrage/Combat Focus liberally. Though I'm sure there's plenty of folks with more experience that could explain it better.

I'm far from the authority as I've only been doing Vigilance on my Guardian for a week or so but I try to apply all 3 DoTs ASAP and keep them up as they provide a buff to all of your damage - 3% per dot up to 9%, if I recall. I generally do Force Leap > Plasma Brand > Dispatch > Blade Storm > Overhead Slash > Vigilant Thrust to spread the dots if AoE situation, Blade Dance otherwise. The reason Dispatch is after Plasma Brand instead of another DoT is to get 100% crit chance on Blade Storm. Vigilant Thrust is to spread the active DoTs to nearby enemies. EDIT: I also usually pop Combat Focus as I am in the air from Force Leap to ensure enough Focus to do all those attacks. It's off the global cooldown and only has a 45s cooldown so don't be afraid to use it!

Given how stable things were during the Thanksgiving beta with WAY more people, this is ridiculous.