Heroin for me, hands down. Some people think its as good as sex. I think its better than sex, to say the least. As a matter of fact, heroin is the best feeling ive ever had.
Easily Amphetamines. DextroAmphetamine or DextroMethAmphetamine in prescription form (Desoxyn) I've never done street Meth/Amps and I wouldn't want to due to impurities.