Jack is better in every statistical category except the meaningless and abstract per.
PER is not meaningless nor abstract. It is exactly what you say above - all the categories combined together and normalized for minutes and pace. It actually proves the exact opposite of what you say, but, we already knew that...
Hilarious that you call him "best pure scorer" when his shooting percentages are horrendously weak, about the worst a Blazer has ever had.
Maris, Maris, Maris, you are slipping.
JB's .535 TS% is better than Sergio's TS% in any year as a Blazer (or overall, this year, his best, is still lower than JB's .535). Even without look at other Blazers players, that makes him at worst 4th worst... (Sergio had 3 years with us).
Oh, what the hell, let's look at TS% this year. The following Blazers or past Blazers that have worse TS% than JB this year while playing for Portland (JB definitely needs to work on his TS% - but he is not even close to that bad) :
Miller, Blake, Dante, Outlaw and Camby, I am leaving out the small sample guys like Mills and S-Bo.
You can do better Maris. Try harder next time.