Last season Aldridge: PER: 25, OBPM: 3.0, DBPM: 0.3, BPM: 3.3, VORP: 3.3, ON/OFF: 6.8
This season Vucevic: PER: 26, OBPM: 3.5, DBPM: 2.9, BPM: 6.5, VORP: 2.3, ON/OFF: 16.9
So yeah, in terms of metrics, so far it is safe to say Vucevic is having a better year than Aldridge's last season.
But regardless of that, what I focus more on is on their respective styles of play. Statistically they put similar numbers, the difference is how they get them.
As everybody already knows here, to get that "engaged" Aldridge you speak of you need to make him the focal point of the offense. He's a rythm player that needs touches on quan y and with frecuency.
Whereas Vucevic is more of a typical European big that gets his on the flow of the offense. You can give him the ball on the post and get him to work but he can also work the pick and roll, both rolling and popping up (not only from midrange but from the 3pt line) and he can also be a spot up player. He doesn't need to always be the first option of a play to be effective.
So, while both are similar in production and neither is a true number one, one needs to be treated as a number one option to produce while the other can actually produce while being a secondary option.