Go for the diceroll.

To choose your race, 1 through 5 is Hume, Elvaan, Tarutaru, Mithra, Galka, and 6 is roll again.

To chose your job, 1 through 6 is WAR, MNK, BLM, WHM, RDM, THF.

etc. You could always do what I did and make 5 characters, one of each race, then level each starting job on them up to ~10 or so, and go with whatever tickles your fancy.

Only don't go Elvaan. They're annoying.