Re: What pedals work best in the effects loop?
Some will say NO pedals, only rack gear, but here's my opinion... Delay is a must for me, if a chorus pedal can take the signal level, it can work, same goes for flanger since it's basically the same as a chorus. (Dave Fox says not so bother with his TZF if you can't put it in the loop) Tremolo can be great in the loop if that's the sound you want, and finally we come to phaser. The only time I use it in the loop is when I want to get a nasty "electronica" sound, deep woosh with a little grit.
In addition, the loop is a great place for a looper, a noise gate, an EQ and a volume pedal, providing you have the correct impedance.
I personally prefer only delay and looper in the loop, everything else is in front. I also like phaser before ALL drive pedals for standard guitar stuff.