My first advice is for you to play the 3 of them at 60 and get a feel at each of them for yourself. They all have their own playstyle and it is better for you to play the one that suits you better. I believe you can get the full potential of a job if you like how it plays and be better with it than if you were to play a job you don't like.

Second, regarding race and stats. STR and VIT give the same attack power, but VIT gives extra HP, so you want to max VIT and then STR. So going with that your race choice should be as follow: 1) Sea Wolf Roegadym (22 STR, 23VIT), 2) Highlander Hyur (23 STR, 22 VIT), 3) Xaela Au RA (23 STR, 21 VIT). Note that current stats are between 1400-1500, so those 1 or 2 points difference are ridiculous in comparaison, but if it"s for the sake of min-maxing, this is it