I've gone through a ton of overdrives in the past 5-10 years. My newest one is the Wampler Plexi Drive, which is insanely cool for the price. The left side is a solid-state take on a Marshall Plexi, while the right side is a great tubescreamer type of overdrive. Killer pedal.
I never saw the reason why the Fortin pedals took off so much and then it looks like they stopped production on them. They seemed like really simple overdrive/EQ pedals.