GLA the new PLD?

[Viridiana]

it is easier to solo pve as class , eventually go into group dungeon with class is not bad, but gear need to be up to date

Only if you're leveling multiple classes. When I leveled to 50 on BRD, the only other class I had leveled was PGL to unlock BRD, so I had no other cross-class. As such, the job was the way to go just for the stat boost.