I'm talking post 1.3 also
As for beating vigilance I'm not sure what you mean, I'm not sure I've ever seen a vigilance spec Guardian out dps a focus if they both know what they're doings . As for one on one, whilst Vig may have may have more survivabilty, I more often than not beat them one on one. The only class you will really struggle with one on one is sniper/gunslinger but it depends on the player as with all classes.