The Hornets outshot the Hawks 43.5 percent to 37.2 percent. Emeka Okafor had 10 rebounds and blocked three shots.
Atlanta jumped out to a 10-2 lead largely because of poor early shooting by New Orleans, which started 1 of 11 from the field. Bibby left the game during that stretch.
Soon after, Stojakovic got in rhythm from long range, hitting four straight 3-pointers during a 16-3 run that gave New Orleans an 18-13 lead.
New Orleans continued to pull away for much of the second quarter, going ahead 45-31 after Okafor's block sent Collison the other way for a fast-break layup.
Atlanta responded with a 9-0 run, highlighted by Williams' 3 and dunk to close the gap. Collison's jumper as the shot clock wound down gave the Hornets a 49-42 lead at halftime.
Hornets reserve center Hilton Armstrong played for the first time since spraining his shoulder in practice last Monday. ... The Hawks won the only other meeting this season 121-98 in Atlanta one week ago. ... Okafor has had at least one block in all but one game this season. ... Collison has scored in double figures in six straight games. ... Smith, who came in leading the NBA with 34 blocks, added three more.
Play Basketball Hot Streak and win prizes!