Common is a better lyricist than Biggie.
Jadakiss deserves to be on here more than most other options available.
Big had a good delivery, but far from the greatest of all time like so many tout him as. As an MC and overall package, Jay-Z became everything Big was and then more. Actually I thought he proved himself superior beginning with Reasonable Doubt. It's just he's slipped so far into comfortable mediocrity that most people overlook this, or throw out Big's name anyway to seem "down"