No Zone Defense in his era though, I'll give Bryant that.
When Michael Jordan played, players could handcheck you on defense. Scoring efficiency is up leaguewide since the rule change...so it's hard to say that the current era is tougher than the handcheck era.
Career:
PPG: MJ - 30.1 > Kobe - 25.1
RPG: MJ - 6.2 > Kobe - 5.3
APG: MJ - 5.3 > Kobe - 4.6
SPG: MJ - 2.3 > Kobe - 1.5
BPG: MJ - 0.8 > Kobe - 0.6
TOV: MJ - 2.7 > Kobe - 2.8
FG%: MJ - 49.7 > Kobe - 45.5
FT%: Kobe - 84.0 > MJ - 83.5
3PT%: Kobe - 34.1 > MJ - 32.7
eFG%: MJ - 50.9 > MJ - 48.8
TS%: MJ - 56.9 > Kobe - 55.8
PER: MJ - 27.9 > Kobe - 23.6
O-Rtg: MJ - 118 > Kobe - 112
D-Rtg: MJ - 103 > Kobe - 105
OWS/48: MJ - .171 > Kobe - .140
DWS/48: MJ - .073 > Kobe - .053
WS/48: MJ - .244 > Kobe - .193
Playoffs:
PPG: MJ - 33.4 > Kobe - 25.0
RPG: MJ - 6.4 > Kobe - 5.1
APG: MJ - 5.7 > Kobe - 4.7
SPG: MJ - 2.1 > Kobe - 1.4
BPG: MJ - 0.9 > Kobe - 0.7
FG%: MJ - 48.7 > Kobe - 44.7
FT%: MJ - 82.8 > Kobe - 81.0
3PT%: MJ - 33.2 > Kobe - 32.9
eFG%: MJ - 50.3 > Kobe - 47.8
TS%: MJ - 56.8 > Kobe - 53.9
PER: MJ - 28.6 > Kobe - 22.0
O-Rtg: MJ - 118 > Kobe - 109
D-Rtg: MJ - 104 > Kobe - 106
OWS/48: MJ - .171 > Kobe - .116
DWS/48: MJ - .078 > Kobe - .043
WS/48: MJ - .249 > Kobe - .159
It's not even debateable.