if im not too late to post a reply, i was wondering the same shit. true that all of them are different highs, or different classes of highs, but some super bomb shit is stuff like northern lights, alaskan matanuska thunderfuck, white widow, white rhino, ice, blueberry, acapulco gold, skunk, sour diesel, and jack herer. now, white widow or white rhino and jack herer or ak-47 are probably the strongest ones to fuck your head for a while. but, there is a strain out there called white russian that is a mix of ak-47 and white widow. ive never actually had it but the plant is supposed to be the highest amount of thc in any pot strain. so, the plant is 22 percent thc. if i were you id try that one first. no matter what, that white russian is gonna fuck him up just as hard as the commie bastards in the 60's. have fun