Newbie Need help

I will soon be playing on a server based on 2009 and I am wondering if you have any tips for me. Which class would be worth it? I am usually a body warrior, but I would also like to sell aura fbs because they will probably be very rare, and later on I might need defense, so I am thinking maybe a mental warrior or weapon sura, really have no plan. It would be nice to get some tips. Many people also say ninja should be good because he can collect everything with a bow or because of the attack speed.