Archer is a very nice option, they added a new aoe skill to every archer so silver rangers will deal a good amount of aoe damage in my opinion, they have much higher attack speed which is essential in mass pvp.
Every dagger needs to boost his str as higher as possible, con is also important so you don’t cut on it, you can sacrifice dex, but never con.
AW is worse solo because you die too fast, you’d need some backup like healers/tanks to be able to get to a melee range fight. Adventurer on the other hand is much harder to kill because of mirage and trick/switch that land with a 100% chance