I guess they all have their place.
I enjoyed watching the meth freaks dig through the trash at 3 in the morning in San Diego.
The crackheads in Chicago were also quite entertaining.
I would say shrooms but that was a one time experience that led to a cow almost trampeling me , my buddy getting mauled by a barbwire fence while getting shocked by the electric wire on the top, and ended with like 10 of us watching the Wrath of Kahn(the only movie available) three times with no volume and methodman on the stereo(the same song on repeat) for like six hours.
So now its strictly herbal if ever.