Joe Johnson and Mike Bibby each finished with 15 points apiece, with Johnson adding nine assists for the Hawks, who are off to their best start since the 2008-09 campaign when it began 6-0 and are the only undefeated team left in the Eastern Conference. Jamal Crawford chipped in 16 points in a reserve role.
"I really wanted to be aggressive tonight from the jump," Williams said. "Last game, I wasn't aggressive at all. I don't really like to play like that; it hurts my team when I'm not aggressive. I wanted to come out and establish myself early, and I was able to do it."
Charlie Villanueva finished with 17 points and seven rebounds, and Austin Daye added 16 points for the Pistons, who have started the season 0-4, their worst record since they began the 1999-2000 season at 0-5.
"It just seems like last year is starting all over again, with the injuries and stuff like that," Stuckey said. "It's frustrating. The main thing -- the guys we have, we've got to stay positive and just try to work together."
These two teams split a four-game season series a year ago but the Pistons have dropped four straight in Atlanta.