For Bigs I value ATH above everything and the next important attributes in no particular order are SPD, REB, DE, BLK, and LP.
For Guards I value SPD the most and next important in no particular order are ATH, DE, PER, BH, and Pass.
SF's can be pretty much whatever you want, but i'd want a player that will end up at least 45 SPD.
Similar to other offenses, but more emphasis on speed at all positions. You can get away with one or two slower players, but most guards that will end up below 70 SPD and bigs that will end up below 25 SPD aren't worth going after. Also if you decide to use the press stamina becomes more important. As it is stamina is more of a luxury. I've always believed that i'd rather have a star play 20mpg than an avg player play 25mpg, but i'm sure some people value stamina more than I do.