QBR for all rookie QBs with 3+ starts (since 2006 when stat was first kept) with special note if they started fewer than 8

1. DeShaun Watson 83.5 (2017) - 6 starts
2. Dak Prescott 77.6 (2016)
3. Russell Wilson 72.7 (2012)
4. Blake Bortles 69.5 (2014)
5. Robert Griffin III 69.4 (2012)
6. Matt Ryan 68.8 (2008)
7. Andrew Luck 65.6 (2012)
8. Blaine Gabbert 65.4 (2011)
9. Justin Herbert 62.6 (2020)
10. Matt Leinart 60.5 (2006)
11. Kyler Murray 57.7 (2019)
12. Jameis Winston 57.2 (2015)
13. Cam Newton 56.6 (2011)
14. Vince Young 56.1 (2006)
15. Tim Tebow 56.0 (2010) - 3 starts
16. Daniel Jones 55.7 (2019)
17. Mike Glennon 55.2 (2013)
18. Teddy Bridgewater 54.4 (2014)
19. Colt McCoy 52.8 (2010)
20. Mac Jones 52.3 (2021)
21. Baker Mayfield 51.2 (2018)
22. Nick Foles 51.2 (2012) - 6 starts
23. Drew Lock 50.2 (2019) - 5 starts
24. Josh Allen 49.8 (2018)
25. Andy Dalton 49.5 (2011)
26. Joe Burrow 48.5 (2020)
27. Marcus Mariota 48.4 (2015)
28. Ryan Tannehill 48.4 (2012)
29. Joe Flacco 47.1 (2008)
30. Sam Bradford 46.9 (2010)
31. Carson Wentz 46.7 (2016)
32. Sam Darnold 45.9 (2018)
33. Tua Tagovailoa 44.8 (2020)
34. Cody Kessler 43.4 (2016)
35. Lamar Jackson 42.6 (2018) - 7 starts
36. Jay Cutler 41.9 (2006) - 5 starts
37. Geno Smith 41.0 (2013)
38. Derek Carr 40.1 (2014)
39. EJ Manuel 38.2 (2013)
40. Matt Stafford 37.1 (2009)
41. Josh Freeman 37.0 (2009)
42. Trent Edwards 36.3 (2007)
43. CJ Beathard 35.4 (2017) - 5 starts
44. Brandon Weeden 33.9 (2012)
45. Jalen Hurts 33.8 (2020) - 4 starts
46. Mark Sanchez 32.8 (2009)
47. Jake Luton 32.8 (2020) - 3 starts
48. DeShone Kizer 32.6 (2017)
49. Mitch Trubisky 32.4 (2017)
50. Christian Ponder 32.4 (2011)
51. Trevor Lawrence 31.7 (2021)
52. Zach Mettenberger 30.8 (2014)
53. Dwayne Haskins 28.0 (2019)
54. Davis Mills 27.9 (2021)
55. Justin Fields 26.8 (2021)
56. Josh Rosen 24.1 (2018)
57. John Skelton 23.6 (2010) - 4 starts
58. Zach Wilson 22.6 (2021)
59. Jared Goff 18.3 (2016)
60. Jimmy Clausen 13.8 (2010)
61. John Beck 13.3 (2007) - 4 starts
62. Max Hall 8.8 (2010) - 3 starts

A few interesting takeaways

• 2012 was a stellar year for rookie QBs, with #3 Wilson, #5 RGIII, #7 Luck as 3 of the top 7 rookie QB seasons.  Plus 2 more (Foles and Tannehill) in the top half of rookie QB seasons.  Only other years that even have 3 in the top half are 2010 (#15 Tebow, #19 McCoy, #30 Bradford), 2011 (#8 Gabbert, #13 Newton, #25 Dalton) and 2019 (#11 Kyler, #16 Daniel Jones, #23 Drew Lock).  Interesting that three of those years (2010-2012) run back to back to back
• 2021 is a BAD year for rookie QBs. Mac Jones is solid at #20, but otherwise this year has 4 of the bottom 12 (#51 Lawrence, #54 Mills, #55 Fields, #58 Wilson)
• 2010 was a bad year to be a Cardinals fan - Warner retired after 2009 and they spent the year bouncing back and forth between two rookies (#57 John Skelton and #62 Max Hall) who are among the worst on record.  Derek Anderson got the other 9 starts.
• Just don't be a Jet.  #46 Mark Sanchez, #37 Geno Smith, #32 Sam Darnold, #58 Zach Wilson.  Only team that I see starting 4 rookie QBs in a 16 year span, and all 4 of them are below median for rookie QBs
• #59 Jared Goff is by FAR the worst rookie season that kept getting opportunities (probably due to his high draft position, which bodes well for Lawrence, Wilson, and Fields).  The next lowest to get a meaningful second contract is #46 Mark Sanchez
• A few schools seems to bring QBs in looking initially OK, but then have them fail to pan out.  USC (Leinart, Darnold, Kessler all started at least mediocre and then regressed; Sanchez was always bad but propped up by a good defense), Texas ( and Mizzou (Gabbert and Drew Lock) are good examples of this
• Guys with a rookie QBR over 70 all ended up studs. 60-70 were more likely to be successful than not (obvious caveats on Luck's retirement and RGIII injuries), but still basically a coin flip. 40-60 has a smattering of successful QBs and huge busts. Below 40 you've got Matt Stafford, Jared Goff and lots of ugliness
• Obvious small sample size caveat but don't start an Ohio St or BYU QB as a rookie; those 2 schools make up half the bottom 10.  (Worth noting though that the Ohio St QBs were higher drafted and played more)
• Some of the best (Mahomes) and worst (Johnny Manziel, JaMarcus Russell) aren't included here since they started so few games