I would probably go for the first one, because he can be trained as an SG/PG even though hes a bit tall, it wont really effect it that much, also if he has good inside skills he can be a great SF as he is just the perfect height. Although the second one can possibly have great all around skills and be a PF/SF, with his height it will take long to do the guard skills for him to become an SF so he will probably end up as a PF.
Go with the first one I say!