So I finally dragged myself into Boutique tone today to slam onto a couple of OD's and finally make up my mind, surprise surprise, I've stomped on over 20 boxes numbered underneath I consider these to be the most mainstream one's out there and by all means these aren't standings . 1 - Colorsound Overdriver 2 - OCD 3 - Timmy 4 - Standard TS-9 & Keeley Modded TS-9 5 - Klon 6 - Barber Direct Drive 7 - AC Booster/OD 8 - Keeley BD-2 9 - Analogman BD-2 10 - Vintage Ts-808 11 - Landgraff Dynamic OD 12 - BJFE Emerald Green 13 - Lovepedal Cot 50 14 - Pro-Analog Dual-Drive 15 - Menatone Blue Collar 16 - Zendrive 17 - MI-Audio Crunch 18 - Lovepedal Eternity 19 - Little Green Wonder 20 - Radial Tonebone. Impressed me the most ? definitly the Keeley BD-2 & Colorsound and Vintage Ts-808, left me a bit dissapointed ... well ... none really ! I settled on the Keeley and Colorsound though Let me know your experience with any of these and vote for the ultimate OD !