Deron Williams is the best point guard in the league. He is an excellent scorer who could score 30 whenever his team needs him to, the best passer in the league, a good defensive player and he is extremely clutch. Last season, he averaged 19.4 points, 10.7 assists and 3 rebounds per game while shooting 47% from the field, 31% from the 3 point line and 85% from the free throw line.
However, his %'s were lower than usual due to him playing with an injured ankle for the first month of the season as he usually shoots over 50% from the field and around 40% from the 3 point line.
Deron also owns Chris Paul head to head as his Jazz are 11-2 vs. the Hornets since they were both drafted.
Also, Paul gets better stats because the Hornets have a more up tempo offense than the Jazz, who have an extremely structured offense with Coach Sloan calling most of the plays. This gives Deron less chances of scoring and getting assists.
Finally, I believe Deron is better defensively as he could guard both small and big guards well and he is more clutch as he has led his team to the West Finals while Paul couldn't win a game 7 at home in the second round last season.
Overall, I think Deron is better than Paul defensively, he owns Paul when they play head to head both in terms of winning and in terms of their play, he is more durable in the long term because of his big size and strength and he is more clutch than Paul is.