I've moved this topic over here as it's not really a FAQ question.
I have been tempted to pick up a ME-6 or ME-8 myself but I'm not sure if they're completely analog. The distortions are definitiely analog, the chorus most probably but I have no idea about the delay.
Carl martin make a floorboard called a quattro,which i think is all analog.i'm not 100% about the echo on it..it also has a loop to allow other pedals to be inserted between the overdrive and compressor and the mod/delay....