If that is not another "You favorite pedal", "Top of your 2/3/4/5/... pedals", "islands" theme, I like to tell something about feeling of sound and pedals for it: 1)I realy like some break-up sound (no matter pedal, or amp), because this is electric guitar sound for me. Not absolutely clean, not compressed distortion (I like them too, but here about essential sound devices). For now it is AMT M-1 preamp, but may be any pedal which gives dynamic overdrive (now waiting my Formula N5). Some boosters, distortion, fuzzes are good, but actually with some dirt and volume on the guitar you can get it. That is first essential part 2)Phase/univibe thing. I don't know, but that best non-dirt effect for me. Ghost-like, dark, mystic sounds on clean and some psychedelic stuff with overdrive. For me it sounds very dry (in a good way) with guitar, and adds necessary colors in my playing. Now it is Blackout Whetstone, which can do phase-univibe-tremolo-vibrato like effects with that switches. Awesome.