Seems to be that smaller guys use less PEDs, which makes sense as they have to be more careful about weight management and being fast. Fighters with larger overheads between weight classes tend to more susceptible to PED use.
If I had to guess, Urijah Faber was clean. He never tested positive, and his entire life he has lived that natural lifestyle. Talks about how his parents were hippies, and that kind of mentality stuck with him. He looked very human during his career.
What fighters would you be willing to bet money on that are not using PEDs?
What weight classes seems to use the most and least PEDs?
Half of the HW divison has popped it seems.
JDS
Reem
Bigfoot
Barnett (Kind Roider, has failed tests over 3 times)
Frank Mir
Lesnar
Ruslan Magomdeov