Ok, this is from the view of one person, feel free to aruge or add to this list
Pro's
Can deal a large amount of damage
Can use the best armor
Has two fast recycle healing spells
Gets a good range of damage dealing abilities
Can use pretty much all Spirit and Nature spells
Self buffs
Con's
Can't do quite as much damage as other melee classes(Warrior, Zerker, Reaver)
Only gets two healing spells
Armor use is subpar for a frontline tank
Doesn't get very many group buffs or heals
The revitalize and buffs you get are a tier below other Life and Aug casters
Overall, Paladin is a good tank and soloist, with the heals coming in handy and cutting downtime...However, don't expect to take as much damage nor dish out as much as the other primary melee classes...