Pippen and Moncrief have remarkably similar career numbers.
Per 100 possessions:
points: 24.7 (Moncrief) 24.0 (Pippen)
efg%: 50.9% (M) 50.4% (Pi)
fts-ft%: 7.4 - 83% (M) 4 - 70% (Pi)
2pt%/3pt%:51.3%/28.4%(M) 50.7%/32.6% (Pi)
TRBs: 7.4 (M) 9.5 (Pi)
ORB: 3.0 (M) 2.6 (Pi)
Ast: 5.8 (M) 7.8 (Pi)
TOV: 3.2 (M) 4.1 (Pi)
Stl: 1.9 (M) 2.9 (Pi)
Blk: .5 (M) 1.2 (Pi)
On O Moncrief had a slight edge in points mainly because he was much better at the line, which makes for a more consistent scorer. He was a smidge more efficient everywhere but the arc. He was the better ORB. Pippen got more dimes but also more TOs. It’s virtually a dead heat, and one played with the greatest scorer of all time. On D Moncrief won NBA Defensive POY twice. Pippen was great at that end as well. It’s difficult to compare numbers because Moncrief was guarding guards and Pippen forwards.
Moncrief wasn’t voted into the top 50 for two reasons. One, injuries limited his peak years. Two, he played in a small market when 90% of the nationally televised games involved at least one of the Lakers, the Celtics, or the 76ers. If he had had the exact same career in a Knicks uniform, he would have been voted into the top 50. Personally I put more weight on peak years than steady long-term consistency. That leads to players like Moncrief and Walton to be criminally underrated by history in my view. Pippen and Moncrief were both great players. Neither has an open and shut case over the other.