Ranger 3 is recommended, because the class is strong by itself and the skill you want from it is Steady Aim, which increases your damage by 20%. Wouldn’t recommend picking Fletcher for PvP, it can perform there, but quite poorly
I haven’t tried Broadhead, can’t comment on that, from what I’ve seen it’s pretty mediocre compared to other Fletcher skills
Because of how defense works in this game, Bodkin Point is awful. 1 point in it is enough to remove magic barriers
Barbed Arrow is really good against Cloth and Leather but not so much against Plate, although it can still be used as a heavily empowered basic attack. Maxing it will help you in PvE immensely, it’s single target damage is amazing and it has a 0 second cooldown
Crossfire must be maxed, period. Really good AoE damage, can apply continuous Burn damage for several second if you have the attribute and the skill itself has a 0 second cooldown, making it easily spammable. If you overuse it, you’ll be out of SP very quickly. Get Condensed Lv10 SP potions if you can
Magic Arrow melts bosses and is really good against other mobs if you make them run into it, should be maxed as well. Attribute can silence enemies, but in PvP, players will just run around it, because the area of the fire pillar it makes is pretty small
I haven’t reached Fletcher 3 yet, so I can’t comment much on DMA, but from what I heard, the explosion it makes doesn’t crit and it’s Shock attribute has a chance to reduce damaged target’s INT and SPR equal to your own STR value, so if you want to try Fletcher in PvP, you should take this
Overall, Fletchers have a very consistent damage output, definitely one of the best in PvE, given that your bring enough SP potions and can manage your SP pool well