Crowder per-36: 16.2 points, 5.8 rebounds, 2.1 assists, 2 steals with 44%/34%/82% shooting
Butler per-36: 20.4 points, 5.2 rebounds, 4.7 assists, 1.6 steals 45%/31%/83%
Butler has a usage rate of 23.9
Crowder has a usage rate of 17.6
That's 1.36x higher usage rate. This math makes no [dang] sense, but let's multiply Crowder's Per-36 points and assists by 1.36: 22 points, 5.8 rebounds, 2.9 assists, 2 steals with 44%/34%/82%
Butler's like 10% better at most. Role matters. Jae took 11.1 shots per game. Butler took 15.4 shots per game. Crowder was actually a better 3-point shooter last season. Difference is, Crowder was contributing to a playoff team and Butler was leading his team to the lottery.
They went to the same school. Compare their college stats.
2011-12 Crowder Sophomore stats: 17.5 points, 8.4 rebounds, 2.1 assists, 2.5 steals, 1 block with 50%/35%/76% shooting in 32.9mpg.
2010-11 Butler Junior stats: 15.7 points, 6.1 rebounds, 2.3 assists, 1.4 steals, 0.4 blocks, 49%/35%/78% in 34.6mpg
Crowder was better as a 2nd year college player than Butler was as a 3rd year College player. Obviously both have improved. Maybe Butler has improved more. But Butler is also pretty overrated. Premium Brand Ricky Davis. Role matters. I'll tell you one thing... trading #3 + Crowder for Butler would have been a bad move.