Here is the MOST used equipment  by the 2008 PGA Tour Winners..

Balls: First - Titleist Pro V1 and Pro V1x with 28 wins. Second - Nike with 11 wins. Third - Callaway with 4 wins.

Wedges: First - TItleist Vokey Design and Vokey Spin Milled. Second - Nike. Third - Cleveland. Fourth - TaylorMade.

Putters: First - Scotty Cameron by Titleist models with 23 wins. Second -Odyssey with 11 wins.

Drivers: First - tie between TaylorMade and Nike with 11 wins each. Third -Titleist with 10 wins.

Fairway Woods: First - TaylorMade, Titleist and Nike.

Hybrids: First - Adams.

Irons: First - tie between Titleist and Nike with 10 wins each. Third -TaylorMade with 7 wins.