Trout has compiled 64.9 fWAR in 1065 games.
Mookie has compiled 30.6 fWAR in 644 games.
Trout 9.87 fWAR per 162 games.
Mookie 7.70 fWAR per 162 games.
These numbers suggest Trout's value is about 28% higher. He may also have a physique that's likely to last longer.
Bottom line, Mookie is not quite at the same level.