reverb needs to be after distortion most of the time, so it would work if you were using a pedal for your distortion/OD before the reverb pedal, but because your using the amps drive channel, you should place the reverb in your amps effect loop.

think of it like this, you want to reverberate your drive signal, not drive/distort your reverb.
you end up distorting all those reverb trailing ends, that end up sounding like a mosh of crap. in some cases (but not yours obviously) it sounds ok to sum people and they want it to sound that way.

it may also help if you think of the reverb as a short delay, when drive is first you are echoing the notes your playing with drive, end of story. but if you place reverb/delay first your driving/distorting every echo after the first, so each extra echo gets two, three, four, times the distortion added or doubled up on the signal with each echo.