i personally use, and is in my pedal route, ang DOD YJM308. great for ma-treble na sound.. i usually boost it with a BOSS BD-2. but kung distortion, PROCO RAT2 gamit ko. with the 'distortion' knob at 4 o'clock, nice, warm distortion sound! at 9 o'clock, cool, overdrive sound. i use this with my single-coiled guitars..
if i have to keep two? the Proco RAT and the DOD YJM308. works well too with my semi-hollow..