Warlock // Awoken // Male
It just seems to fit with the story better for me and I never play as a female character. I just find it hard to relate.
As far as choosing my class, I have played warlock from the get-go in the alpha and continued into the beta and I have to say it is by far the best class in PvE by an absolute mile. Once upgraded you can almost match titans for toughness yet still have the grace and guile to play smart if needs be.
Hunter is probably my least favorite class. I leveled up my hunter-male to level 8 yesterday and I felt very vulnerable the entire time. Yes the movement is better/quicker but I felt very under-powered. Plus in PvE the golden gun super is almost useless and the double/triple jump wasn't practical enough to escape danger. The only real thing i'd take from the hunter class is the throwing knife which was excellent.
I have to admit I've only played titan for a few minutes and I quite liked it, but I very rarely pick tank/soldier classes. Limited movement but very tough. I can see this being my second choice character.
IMHO the more canon races/classes are : awoken/warlock, exo/hunter, human/titan.