Pac is at a .72 ppg in his career, Tatar has a .53 ppg in his career. There's a very big difference between a guy that gets you about 60 pts a year on average vs one that gets just over 40 pts a year. Look I couldn't stand to watch Pac but he is what he is, a guy that was frustrating but put up a lot of points.
Only 2 players from the 2007 draft have scored more goals then Pac, Patrick Kane and Benn. Only 3 players have more points, Kane, Benn and Vorachek. Clearly he's one of the best players from the '07 draft, one of the leagues best goal scorers 5 on 5. We'll see how he does this year, I will be shocked if he struggles like last season.