One thing I do like about IDPA & their IDPA publication, Tactical Journal, is that they give a breakdown of equipment used in their national matches. This quarter's publication, 2Q2015, contains the breakdown from the Indoor Nationals.
http://www.idpa.com/content/tactical-journal/15V19I2.pdf I figure all I have to do is use the right equipment and I too can be up there with the pros.
Here is the top data from each category.
Firearm brand: Glock, S&W
Models(beside generic 1911): 34, M&P
Holsters: Blade-Tech, Comp-Tac
Handload vs Factory: 66 vs 26
Garment: 5.11
Hearing: Peltor
Powder: Titegroup
Bullet type: Plated
Press: Dillon
Primer: Federal
CCW Firearms: Glock & S&W
CCW Holster: Comp-Tac
CCW Model: Shield
CCW Ammo: Federal