I currently use a Fulldrive 2 mosfet and owned a vintage 808 for many, many years and while both of these pedals belong in the stomp box hall of fame I think, if it came down to just one pedal, I would go with the FD2. More or less, the FD2 mosfet is a Tube Screamer but with many more options and sounds. It can function as a basic boost, wide crunch, or searing mid-heavy and compressed distortion great for single note lead playing.
You can't go wrong with either pedal but the Fulldrive sounds as good or better than the TS808 and then delivers a lot more sounds on top of it.
You can't go wrong with either pedal but the Fulldrive sounds as good or better than the TS808 and then delivers a lot more sounds on top of it.