No love for Tupac? I know Biggie was a lyrical genius but Pac was a rhythmic genius. His lines just hit and the never followed any standard of normal rhymes. Hell, sometimes he wouldn't even rhyme at all and just say a deep phrase.
I like Pac's for his rhymes and Biggie for his beats, though I wish Biggie had more tracks like Dead Wrong, too much RnB like crap through his career. As far as disses, 2pac definitely had the upper hand there w/ Hit em Up:
"Grab your glocks when you see 2pac
Call the cops when you see 2pac, uh
Who shot me,
But your punks didn't finish
Now you 'bout to feel the wrath of a menace
$$$$, I hit 'em up"
Nothing like mocking people after they tried to shoot you. A lyrical teabaggin indeed.