Help outdated relic with a decision?

You should look out for the 5 job now that it came in KMS, i would say it isn't that easy to decide what class is most OP in bossing now, i would say F/P is still strong, marksman got some damage boost in 5 job too, but they still revamped some 4 job skills so you should look more into one that you like in terms of Playstyle, since it won't change with 5 job, but just get reinforced and better.

Edit: If you are gonna main a class for real you problably gonna play that class for a lot of hours, so at least least chose one that you like the best .

About reboot: in reboot you gotta farm your own money while in normal ones you gotta farm itens and sell to get eqps of your class, it's also easyer to trade class in normal ones since equips are tradeable with psoks(end game eqps in general).