If I had to chose only between those 2, I would definitely take the SF. I would never consider a DII SG with a 22 Per unless his scouting trip feedback said "sky's the limit" or some other message that indicated that he has unlimited potential in that skill. I would also be concerned with the SFs 15 durability. In the new engine, both injuries and recovery time are based on durability. I would seriously consider looking elsewhere before I took either of them if I thought there was a chance of doing better.