the thing with mithras is that they hit well. so if dealing damage is your thing, mithra is a good choice. i started out warrior with my mithra and throughout my first 27 levels-currently 27- i deal just as much damage as most party members that ive ever partied with. the key to being a warrior, which i suggest starting with, is staying up to date with armor first and then getting a weapon. i use greatswords and i love them. mithra warriors also have an advantage in the evasion department too. as far as choosing an advanced job..consider interesting main/sub combos. im going drk/thf as soon as i get the drk flag. most people do drk/war until very high levels. but i want the stat bonuses that a thief provides. theres no wrong way of doing it.
all you have to decide is if you want to do a lot of attacks for smaller amounts of damage (nin/thf, for example) or if you want to do large amounts of damage with a high hit and crit rate (drg, drk, sam; with either war or even rdm sub)
Raudy-pandemonium
27WAR 15THF