Who had the most dominant triple crown season in the AL/NL since 1920?

My friend and fellow SABR member Ira Siegel suggested this. But I was not sure what method to use since we have three very different stats involved. 

We could look at how many HRs, RBIs and points of batting average each guy is ahead of second place and add them all up. But that is like adding apples and oranges.

So I did find all those differences but I decided to rank them and give points using the MVP voting system. If a player had the largest HR differential (that is, over the guy who came in 2nd place) that would get them 14 points. Then the next largest HR differential gets 9 points. So like the MVP voting, the point scheme is 14-9-8-7-6-5-4-3-2-1. There were a few ties, so points were split. If two guys tied for 3rd, for example, they each to 7.5 points. Each player got points in all three stats (except for guys who came in 11th or 12th-there have been 12 triple crowns since 1920). Then the points from each stat were totaled and the player with the highest total is the most dominant.

First, Table 1 below has all the winners and there stats:

Table 1

Player	Year	HR	RBI	AVG
Rogers Hornsby	1922	42	152	0.401
Rogers Hornsby	1925	39	143	0.403
Chuck Klein	1933	28	120	0.368
Jimmie Foxx	1933	48	163	0.356
Lou Gehrig	1934	49	166	0.363
Joe Medwick	1937	31	154	0.374
Ted Williams	1942	36	137	0.356
Ted Williams	1947	32	114	0.343
Mickey Mantle	1956	52	130	0.353
Frank Robinson	1966	49	122	0.316
Carl Yastrzemski	1967	44	121	0.326
Miguel Cabrera	2012	44	139	0.330

Now Table 2 which shows how far ahead they were of the 2nd place guy in each stat:

Table 2

Player	HR Edge	RBI Edge	AVG Edge
Rogers Hornsby22	16	20	0.047
Rogers Hornsby25	15	13	0.036
Chuck Klein	1	14	0.019
Jimmie Foxx	14	23	0.020
Lou Gehrig	5	24	0.007
Joe Medwick	0	39	0.010
Ted Williams42	9	23	0.025
Ted Williams47	3	16	0.015
Mickey Mantle	20	2	0.008
Frank Robinson	10	12	0.009
Carl Yastrzemski	0	8	0.015
Miguel Cabrera	1	11	0.004

The largest differential for HRs is Mantle at 20 (that is, Mantle hit 52 HRs in 1956 while the the 2nd highest HR total in the AL that year was 32). That will get him 14 points. Next is Hornsby 1922 at 16, so that gets him 9 points.

Table 3 below has the complete HR rankings

Table 3

Player	HR Edge	Pts
Mickey Mantle	20	14
Rogers Hornsby22	16	9
Rogers Hornsby25	15	8
Jimmie Foxx	14	7
Frank Robinson	10	6
Ted Williams42	9	5
Lou Gehrig	5	4
Ted Williams47	3	3
Chuck Klein	1	1.5
Miguel Cabrera	1	1.5
Joe Medwick	0	0
Carl Yastrzemski	0	0

Table 4 below has the complete RBI rankings:

Table 4

Player	RBI Edge	Pts
Joe Medwick	39	14
Lou Gehrig	24	9
Jimmie Foxx	23	7.5
Ted Williams42	23	7.5
Rogers Hornsby22	20	6
Ted Williams47	16	5
Chuck Klein	14	4
Rogers Hornsby25	13	3
Frank Robinson	12	2
Miguel Cabrera	11	1
Carl Yastrzemski	8	0
Mickey Mantle	2	0

 

Table 5 below has the complete AVG rankings 

Table 5

Player	AVG Edge	Pts
Rogers Hornsby22	0.047	14
Rogers Hornsby25	0.036	9
Ted Williams42	0.025	8
Jimmie Foxx	0.020	7
Chuck Klein	0.019	6
Ted Williams47	0.015	4.5
Carl Yastrzemski	0.015	4.5
Joe Medwick	0.010	3
Frank Robinson	0.009	2
Mickey Mantle	0.008	1
Lou Gehrig	0.007	0
Miguel Cabrera	0.004	0

Table 6 below has the complete total point rankings

Table 6

Player	HR Pts	RBI Pts	AVG Pts	Total
Rogers Hornsby22	9	6	14	29
Jimmie Foxx	7	7.5	7	21.5
Ted Williams42	5	7.5	8	20.5
Rogers Hornsby25	8	3	9	20
Joe Medwick	0	14	3	17
Mickey Mantle	14	0	1	15
Lou Gehrig	4	9	0	13
Ted Williams47	3	5	4.5	12.5
Chuck Klein	1.5	4	6	11.5
Frank Robinson	6	2	2	10
Carl Yastrzemski	0	0	4.5	4.5
Miguel Cabrera	1.5	1	0	2.5

 

Rogers Hornsby in 1922 is well ahead of the pack. So, at least according to this method, he had the most dominant triple crown season.