I am sorry you feel that way, but from your post, I can honestly conclude that you didn't spend enough time with pes 13, because in all honesty I don't think you know of the following.
First touch. Now in pes 13 you can control the first touch in 3 different ways.
Manual shooting, passing, long passing, etc... Works really well and is mixed with player individuality
R2. Revolutionary. You can dribble slowly with it with full control, burst out of it or shield the ball with big, strong players. With slow players like Pirlo, R2 is fantastic as you can literally dance around a player to get into a better position for that killer pass.
Animations. While not fifa like, they are way smoother and fluid than in pes 12
Shooting in general without manual is way better as you can have an input on direction.
AI and CPU change. Pes 12 cheated you to death and when the AI scored, you can see through the cheating. In pes 13, while cheating still occurs, it's way less noticeable and won't make you made when you conceal a goal.
AI of your teamates. In pes 12 they had a set of option to open space. Pes 13 expanded that further.
PLAYER INDIVIDUALITY has never been better and you can instantly tell when you're with a dribbler, a passer or a scorer. Oh and player ID actually works extremely well.
And most of all, ENJOYMENT. This may be personal opinion, but the game is very enjoyable and you won't feel bored after 1 game.
Seriously, the changes mentioned above place pes 13 way above pes 12 and it seriously isn't a 99.9% copy when all of those changes were made.