Lebron and Kobe have played each other 19 times, Lebron's team has won 13 of those games with Lebron beating Kobe in scoring, rebounding, assists, field goal %, 3 point %, steals and blocks.
At age 28 when you compare their career stats, Lebron leads in every category across the board.
Lebron is
#2 all time in the Player Efficiency Rating behind only Michael Jordan, Kobe Bryant isn't even in the top 10.
Lebron crushes Kobe in the win share statistic.
At age 28: Kobe 3 NBA Championships, 0 MVP's, 0 Finals MVP's. Lebron 2 NBA Championships, 4 MVP's, 2 Finals MVP's.
First round playoff exits or Missed Playoffs entirely: Kobe 5, Lebron 2
Current Career Playoff Stats:
Lebron
28.1 points per game
8.4 rebounds per game
6.6 assists per game
49.1 fg%
37.5 three point %
Kobe
25.0 points per game
5.1 rebounds per game
4.7 assists per game
44.7 fg%
29.3 three point %