After the update in which templar skills are enabled in common mounts, the templar- Cata-Lancer will shine.
I think your analysis is very shallow, templar is the best kind of support for war between guilds and PVP.
I will talk only about skills:
Mortal Slash
PROS:
Is a decent damage skill for a class support … its advantage is that it ignores 50% of enemy defense and has many overheats and low coodown,
CONS:
The down side is that the animation is very slow.
Non-Invasive Area
PROS:
Is a skill that can protect your allies from short range strikes by pushing the enemies (who are without knockback protection) too far away.
In the future, if it is used while mounted on the horse, it will reduce damage by 25% to allies within the skill.
CONS
Is a channeling skill and chanelling skills are very bugged in the middle of lag and desyncs
Forge
PROS
Ideal for finding hidden enemies, do a annoying knockback every hit.
CONS
The cooldown is too long, the damage is too low and is an easy target for linkers.
Shield Charger
PROS
The skill proves a fantastic shield for a great period with a decent number of allies (five)
CONS
The cooldown is too long, is an easy target for linkers, can be reversed
Horse Riding
PROS
Movement speed increases, Pain Barrier buff is applied, A GTW point bonus applies while you are mounted, after new patch some skills will have special effects on horse (flying colors, non invasive area, battle orders, advenced orders), Hard Shield buff is active, its duration becomes infinite.
CONS
Cannot use others classes skills (Just templar ones)
Advanced Orders
PROS
Increases the movement speed of nearby guild members and allies, while reducing that of nearby enemies.
After new patch you will be able to use with regular mounts.
If used on Horse you can taunt monsters.
CONS
Cannot be used with Battle Orders.
Battle Orders
PROS
Increases the physical and magic attack of nearby guild members and allies.
After new patch you will be able to use with regular mounts.
If used on Horse gives you and nearby allies AoE attack ratio +1
CONS
Cannot be used with Advanced Orders.
Flying Colors
PROS
Allies have their critical rate increased and receive less damage in PvP. Reduces enemies’ critical resistance.
If used on Horse gives you and nearby allies 10% less damage on PVP
CONS
Durantion is too short