Hey
Archer isn't that easy class.You have to know how to play in order to be a good player in a balanced server(run,keep in max range etc,good stun use)
imo easy class is tank,Most noobs make a tank in order not to die..so ><
but still for a L2newbie(easy characters) i would suggest Archer(in IL) Tank or Necro at GE
( i don't mention bot classes,like SWS that Billistain wants to play,petbuff)
Now hard classes.All classes need proper gameplay
Sure,one of the most difficult is bishop,cause u have to make a whole party survive,ESPECIALLY in a server w/o mana potions
Many users play dagger...but unsuccesfully
with good knowledge a dagger class becomes OP,but most times noobs fck it