Marksman or Bowmaster

There's a reason tons of Marksmen are inactive.
If you're planning to get to 4th job at all, Bowmaster will definitely be worth your while.
Though I'd have to say Crossbow > Bow at both second and third job, with the new boost in Iron Arrow and the simple fact that you can freeze in third.

Sure you spam one skill as a Bowmaster, but what the hell? This is Maple Story, nothing in it is really much from the normal, dull grind.

I say you should go for Bowmaster.