Welcome to the forums, trigunz.
FGPBASE: Field Goal/Jump Shooting Rating
THREEPTBAS: Three Point Shooting Rating
FTPBASE: Free Throw Rating
DNKABILITY: Dunking Rating - controls how often a player can make difficult dunks
STLABILITY: Stealing Rating
BLKABILITY: Blocking Rating
OREABILITY: Offensive rebounding rating
DREABILITY: Defensive rebounding rating
BALABILITY: Ball handling (passing) ability
OFFABILITY: Offensive Awareness
DEFABILITY: Defensive Awareness
SPEED: Speed rating
QUICK: Quickness rating
JUMP: Jumping rating
DRIBBLE: Dribbling rating
DSTRENGTH: Strength rating
DHARDY: Hardiness rating - controls injuries in simulated play
DSHOOTRANG: Shooting Range (8-25 feet)
FATIGUE: Fatigue (Endurance) Rating
INSIDESC: Inside Scoring Rating
THREEPTATT: The percentage of a player's field goal attempts that will be three pointers.
eg. 17 = 17% of all field goal attempts will be from downtown.
PRIMACY: Primacy Rating - how often the CPU will use player to score
I'm not sure exactly what the awareness ratings do, but if you create two players with identical ratings, except make one players awareness ratings lower, they will perform worse.