AAR stands for aoe attack ratio.
Current falcon is not post-rebalance version, we cant test unless playing ktos/ktest
post-rebalance falcon3 will be aoe burst dealer by its self, but with nerfed circling and no expand, makes the r9 is pretty much standalone except for aiming
What you could consider
Mergen > fastest aoe burst, wider aoe, most skill are wide, +50% vs flying, skills has lower skill factor % compared to other
BM > best AA build and combined preemptive strike, has 360 aoe skill, 2 wep to gear up, lower patk compared to other
Musket > highest patk, high burst, cheaper attribute
all of those classes has synergy with aiming
Even tho having several differences, those 3 build doesn’t differ much on performance vs mobs, all of them has some skill to use when pheasant is on cd, so it’s fine if you follow the “role” of character you want