MF DOOM, Tribe Called Quest, The Roots, Goodie Mob, Common (when he was Sense), Nas, Talib Kweli, Cypress Hill, Fugees, Wu Tang Clan (group), Ghostface w/Raekwon, Gza w/ Ins. Deck, Cappadonna w/Killah Priest, ODB, Tribe (again) w/Busta Rhymes.
Pound for Pound live the best was The Roots. And sadly the weirdest was ODB...in 98' he came for a solo show at the House of Blues but man he got drunk and didn't perform much of anything. The crowd was pissed.
The craziest would be Ghostface in 2k5 at Joe's. Opening act was Tru-life, and dude fucked up the crowd & started a fight...cops came, half the crowd left & Ghostface restored order. Any Chi heads there will remember.