It depends on which you plan on using at the same time. If you only ever have the reverb on without the distortion, its position only matters relative to the compressor.
Distortions compress your signal but in a different way to a dynamic compressor, so you should try experimenting with having it before or after but it depends a lot on how much gain you use.
Some TDPRI guys have talked about comp at the end of the chain, but I like the comp coloration going on to my clean signal, rather than having my multi-pedal high gain turd distortion mess hitting the compressor so hard it just feels like an anti-dynamic limiter of sorts. In addition, the option of a clean boost with the comp kicked in to drive the front end of the next drive pedal in line can be useful to some. Orange Squeezer-type comps practically do this one automatically, and they (OS-type comps in particular) can sound great to keep the beef up, adding mid-lo girth and stuff to one's overdrive while providing decent compression when needed.
Some TDPRI guys have talked about comp at the end of the chain, but I like the comp coloration going on to my clean signal, rather than having my multi-pedal high gain turd distortion mess hitting the compressor so hard it just feels like an anti-dynamic limiter of sorts. In addition, the option of a clean boost with the comp kicked in to drive the front end of the next drive pedal in line can be useful to some. Orange Squeezer-type comps practically do this one automatically, and they (OS-type comps in particular) can sound great to keep the beef up, adding mid-lo girth and stuff to one's overdrive while providing decent compression when needed.
I've never used a compressor. It's one of those "effects" I can't be arsed messing with and don't think I need it. It's in the same category as reverb for me. Nice if I have them, not arsed if I don't. Chorus used to be in that category, but I actually like using a little of that now.
Some TDPRI guys have talked about comp at the end of the chain, but I like the comp coloration going on to my clean signal, rather than having my multi-pedal high gain turd distortion mess hitting the compressor so hard it just feels like an anti-dynamic limiter of sorts. In addition, the option of a clean boost with the comp kicked in to drive the front end of the next drive pedal in line can be useful to some. Orange Squeezer-type comps practically do this one automatically, and they (OS-type comps in particular) can sound great to keep the beef up, adding mid-lo girth and stuff to one's overdrive while providing decent compression when needed.
See where you're coming from here, but I quite like that Husker Du, compressed distortion sound- the compressor tightens-up the fuzz/squall.