That is a good comparison. I'll throw Pujols, Miggy, & ARod in there too. Probably the 5 best players of the last 30 years not including Bonds.
From Age Rookie to Age 30
.958 OPS, 145 OPS+, 464 HR A-Rod
.948 OPS, 148 OPS+, 438 HR Griffey
1.050 OPS, 172 OPS+, 408 HR Pujols
.967 OPS, 154 OPS+, 365 HR Miggy
1.002 OPS, 176 OPS+, 350 HR Trout
Age 31+
.879 OPS, 132 OPS+, 232 HR A-Rod
.833 OPS, 114 OPS+, 192 HR Griffey
.781 OPS, 114 OPS+, 295 HR Pujols
.806 OPS, 120 OPS+, 143 HR Miggy
.862 OPS, 135 OPS+, 18 HR Trout