Ranger-PRO
Ranger is better as DPS especially you have kavis C3 in your party.
Ranger buff skill can use with every missile skill
Ranger is faster to leveling-clear group of mob
Ranger can use every skills while mount
Ranger can do combo with full draw
Ranger-CON
Ranger drain a lot of mana.
Ranger need close range style to play
Ranger have a little down time while waiting cd (but it fine when you become SR2-3)
QS-PRO
QS is better for fight 1-1 with boss & elite mob
QS have more mobility while attack
QS have 2 argo skill it’s easy to lure mob, has 1 skill debuf to remove enemies Crit def and has 1 stun skill.
QS have better defensive against archer & swordman
QS running shot will boost a lot with buff skill especially Divine Might, Enchant Fire, Quicken, Sacrament, Swell Left Arm
QS’s CON
QS’s Running shot scaling with skill only(no attribute boost) need to use a weapon+skill lvl & gem to keep scale this skill
QS’s Best Defensive need to unmount to use. You need to remount again after use
QS not good at fight with group of mob.