Ideally I'd have an elite PG, SF, and C. PG is one of the most important positions in the game and an elite PG will take you far
SF is completely uncapped so if you can get an elite SF he could be straight up nuts. Also not a whole lot of elite SFs so an elite SF could really set you apart. Let me hold RJ Beats
C is important too, need someone to enforce the paint and grab rebounds. I like having a Center who can score regardless of where you put him or if he's an option or not. Pretty interchangeable with PF though imo, just want an elite big.
SG is close too, but with studs at PG/SF I would be fine with a good 3 and D guy