If there's a way to run an advanced search string on basketball-reference.com, I haven't figured it out. But there are 79 players who averaged at least 19ppg over their careers so I just went down the list and wrote down their career PER. It was a little tedious but didn't take all that long. The full list would take an entire page so I'm not going to post it here. I can PM it to you if you're interested. But here's the bottom of the list:
(lowest career PER average for players with at least 19ppg)
1. Jeff Malone - 19.04ppg - 15.2 PER
2. Darel Carrier - 20.03ppg - 15.6 PER
3. Jamal Mashburn - 19.06ppg - 15.7 PER
4. Hal Greer - 19.24ppg - 15.7 PER
5. Charlie Scott - 20.69ppg - 15.8 PER
6. Mike Mitchell - 19.78ppg - 16.7 PER
7. Monta Ellis - 19.45ppg - 16.8 PER
So Ellis actually comes out 7th by a hair. Interesting to note with this group: Charlie Scott, Darel Carrier, and Hal Greer are all missing blocks and steals from their career statistics because they played before 73 when those started being counted (Carrier and Greer for their whole career, Scott for the first 3 years) which means their PER is unfairly skewed down a bit. No excuses for Jeff Malone, Jamal Mashburn, Mike Mitchell, or Monta Ellis though. Hollinger rates a score of 15 PER to be league average, 16.5 PER as 3rd banana, 18 PER as a solid 2nd option, and 20 PER as a borderline All-Star so despite the high scoring totals, none of these guys were efficient enough to warrant 1st or 2nd option status. Here's the next group, for a little more context. I stopped when I got to Pistol Pete. Remember these are career averages so every one of these guys peaked with a higher PER than is noted here...
8. Levern Tart - 19.40ppg - 17.0 PER
9. Lou Hudson - 20.16ppg - 17.4 PER
10. Bob Verga - 20.23ppg - 17.5 PER
11. Glenn Robinson - 20.69ppg - 17.5 PER
12. John Havlicek - 20.78ppg - 17.5 PER
13. Dave Bing - 20.34ppg - 17.6 PER
14. Mitch Richmond - 21.00ppg - 17.6 PER
15. Elvin Hayes - 20.96ppg - 17.7 PER
16. Jack Twyman - 19.25ppg - 17.8 PER
17. Isiah Thomas - 19.23ppg - 18.1 PER
18. Kiki Vanderweghe - 19.73ppg - 18.4 PER
19. Pete Maravich - 24.24ppg - 18.4 PER
Interesting to see Mitch show up on the list. He's 37th on the career scoring average list with 21ppg though, which is highest of everybody listed here except Pete Maravich who is 20th at 24.24ppg. Also his last three seasons in Sacramento were the best of his career by far (19.2 PER, 21.6 PER, 20.4 PER) which helps explain why he's remembered so fondly here. And since I wanted to dig a little deeper on Ellis, I looked at his season by season PER scores and compared them with Evans to see if there were any trends. Evans' career averages to-date are 17.5ppg and 16.9 PER:
Ellis - (06, 11.1 PER) (07, 15.0 PER) (08, 19.0 PER) (09, 14.5 PER) (10, 16.7 PER) (11, 18.6 PER) (12, 17.5 PER) (13, 16.2 PER)
Evans - (10, 18.2 PER) (11, 14.4 PER) (12, 16.4 PER) (13, 18.1 PER)
So Ellis has played 8 seasons now and he bested his career average PER in only 3 of them. In other words, he's the very definition of a 3rd banana offensive player. The defense skews his value down though. Evans' numbers would look significantly better if he could wipe out his terrible sophomore season, but he looks like a good bet to be a solid 2nd option in the future as he hasn't yet reached his prime and has 2 seasons of 18 PER already. One last thing I noted from this, just because I've always suspected as much, Defensive Win Shares are an absolutely atrocious stat. Ellis' skyrocketed from 0.9 in 2012 to 3.3 in 2013 just by moving to a good defensive team.
Oh yeah, and now for the really good news:
Cousins - (11, 14.6 PER) (12, 21.7 PER) (13, 20.2 PER)
Folks, we have ourselves an All-Star!