SG or SF. Have to go with SG because SF have to guard smaller faster players and bigger physical players.
In order from easiest to hardest
1. SG
2. SF
3. PF - have to guard bruisers and stretch 4's
4. C - takes the longest time to develop
5. PG - Quaterback, most cerebral position, involved in every play on both ends
You are right. Wing players don't know where to be and fill lanes. If all goes well the Knicks will be an exception under Phil/Fish