even if I am inveterate war class player, I'd advise to stay with wiz or tao if that's what is your gameplay style
since I did tinker with wiz for a bit on some servers, it is a much more rewarding class to play at those lower levels. Warrior really get his first skill only @lev22, those two noob skills pretty well don't count as far as variability of gameplay or what to call it, goes.
It is a slog 0-22 beating a single mob at a time to death with your stick in oma and in mines where even if you can kill, you really feel like you don't belong and you return to oma until like lev18+ when you return to mines
contrast that with wiz who gets fireball which is a 'real' skill in that you use it via F key, also in short time, in mid teen levels, you get greater FB, where warrior gets nothing to break the monotony of his sad life
@22 with thrusting, you go bug cave to those single slots and its no complaint as far as that goes, except that @26 when you get HM (return to mines at this point), your thrusting is still @lev2 and lev3 is slated for when you get lev27... which is dumb, since you are supposed to ditch your newly acquired multiple mob killing ability and return to bug cave slots to level it, otherwise if you leave it to 'nature', it might level up by the time you get lev40 but very likely not
at mid twenties level, if you max your warrior items with PAxe and Drings and most items with some added stats (mainly you look for DC and ASpeed which is fairly easy here), you find you can stand against ET but you can't hurt it, all the while you see wiz and taos around who have no such problem with it. For warrior you may have to wait till lev32 for TDB to start soloing ETs
but wait, it can drop GAxe which you qualify for @lev27, so its catch 22, warrior really needs to grp and or join a guild to be viable class, not true for the other two classes
things get better at higher levels but even on that opinions differ, also that greatly depends on a given server setup. I played some servers recently where the thrusting & HM were mercifully lowered to lev21, also one server a while back that gave war some early custom skill at ~lev15, can't recall details of it now