PvE: Painter/AT/Gunner/Sorc/Cleric/SM/Assa (+ bard if you have a magic dps focused setup) are S tier.
Glad/Temp/Ranger/Chanter (+ bard if you have a phys dps focused setup) are trash tier since it's not optimal and can be replaced by better dps outputs.
Templar Trash tier in pve? Lol, okay
In which instance templar does better than AT?
Ah ye, none.