I'll start off using my SGs since they are well rounded (and the question was well rounded, not the very best possible, right?)
an average of my 3 well rounded SGs would look like this:
Jump Shot: 8
Jump Range: 8
Outside Def.: 9
Handling: 7
Driving: 6
Passing: 7
Inside Shot: 6
Inside Def.: 6
Rebounding: 7
Shot Blocking: 5
Now these is what I have. If I add it all I get to 69 points, so I can distribute 11 more.
I'd not add any to blocking, passing and handling. Blocking isn't realy worthless (guards with some blocking skill do block many shots in BB), but 5 is certainly enough for guards. respectable passing and handling should be enough too.
Rebounding is doubtfull, since every player adds to this in the team, even though guards add the least, they DO add to this rating. respectable is good, but I'd add 1, to make it strong.
Inside shot, also +1. Respectable inside shot is good for lay-ups, something they tend to do somethimes.
Inside defense, also +2. Strong inside defense keeps your opponent's guards from scoring too much inside.
Driving +2. Strong driving helps outside shooting as well as inside shots. If you are looking for a balanced SG, Strong driving is a must.
Jumpshot and jumprange, both +2. SGs should be able to shoot...from all distances.
The remaining points all go to outside defense. No need to tell the importance of OD for guards... unfortunatly, only 1 point left. So maybe I'd drop the rebounding point and add it with OD...
This brings my good balanced SG to this:
Jump Shot: 10
Jump Range: 10
Outside Def.: 11
Handling: 7
Driving: 8
Passing: 7
Inside Shot: 7
Inside Def.: 8
Rebounding: 7
Shot Blocking: 5
This SG can be used in any offensive tactic, and against any team's offenses.
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