Skylark wrote
And the Delay pedals with Wet and dry out?
Yes. Any stereo effect will work - a short delay between two amps is one of the better ways to "stereoise" your sound and you'll find you can get some pretty unique and fat tones with very short delays (1 - 15 ms with no feedback). A subtle chorus or vibrato also works well and even using a stereo reverb can add a whole new dimension to your sound. Just be warned, once you go stereo, it's difficult to go back and it doubles your setup. Also note that while you gain a lot of dimension to your sound, it doesn't stand out in a mix as well, so you want to be able to switch to mono while playing for solos, etc. or any time you want to punch through the mix better.
By itself, autopan is probably the least satisfying of all the effects. It works well in studio though (especially on top of another modulation effect like phasing - at the same tempo, it makes the sound sweep through the stereo field as it sweeps through the frequencies).
A good rotary speaker effect is the best IMO as it effectively includes a type of chorus, vibrato and autopanning all in one. Not only that, but the bass and treble are split differently through left and right and speed up/slow down at different rates. Even better, the real rotary speakers are very 3D as they throw sound in all directions and bounce it off all the nearby walls too.
Just don't put your speakers too far apart when playing live as most people will miss half of it.
