Most and Least Likely to Give Up a Homer

Top 10 toughest active pitchers to hit a homer off of, among those with 1500+ Innings Pitched (measured in innings pitched per home run):
1. 14.21 Greg Maddux (352 in 5002 1/3)
2. 12.61 Tim Hudson (160 in 2017 1/3)
3. 12.40 Tom Glavine (356 in 4413 1/3)
4. 12.38 Derek Lowe (156 in 1930 1/3)
5. 12.26 John Smoltz (277 in 3395)
6. 12.03 Roy Halladay (149 in 1792 2/3)
7. 12.01 Roy Oswalt (134 in 1610)
8. 11.99 Pedro Martinez (231 in 2770 2/3)
9. 11.97 Tom Gordon (176 in 2106 1/3)
10.11.86 Andy Pettite (230 in 2726 2/3)

And the 5 worst active pitchers in giving up homers among those with 1500+ Innings Pitched (measured in innings pitched per home run):
1. 6.82 Paul Byrd (243 in 1658)
2. 7.17 Woody Williams (309 in 2216 1/3)
3. 7.19 Steve Traschel (348 in 2501)
4. 7.28 Brett Tomko (239 in 1741)
5. 7.56 Jeff Suppan (294 in 2224)

Note: Hudson's accomplishment is all the more remarkable because, unlike the former Braves Big 3 of Maddux, Smoltz and Glavine, he has pitched his whole career since the homer boom of 1993 on. Also of note is Brandon Webb, who doesn't yet qualify with 1500+ innings pitched, but currently stands at giving up a homer every 14.46 IP (90 in 1301 2/3).

Also, several recently active (but not active in 2008) pitchers were truly horendous: Jose Lima, 5.87 (267 in 1567 2.3), Eric Milton, 5.88 (265 in 1558 2.3) and Ramon Ortiz, 6.27 (217 in 1359 2/3)