However, the majority of bowlers pre-1914 have high WPM rates. Because there were more wickets falling per game and also they were usually one of only two or three good bowlers in the team.
These days, most attacks have four specialist bowlers with one backup who bowls his fair share.
So bowlers' WPM pre-1914 has to be adjusted somewhat.
Also, one also has to look at the bowler's teammates and how good they were. Grimmett and O'Reilly were the only decent bowlers for Australia during the 1930s and their WPM rates are high accordingly.
There's not many people on here who would say that Hadlee was a much, much better bowler than Marshall, for example. Yet their WPMs say that Hadlee averaged about half a wicket more than Marshall per match, a substantial margin.
I guess you would then bring in their relative strike-rates to balance it out, which is fair enough.
Lillee is the only bowler I have found who transcends this argument. Despite playing with Thomson and Alderman, without doubt in the top 100 test bowlers of all time, he averaged 5.07 wickets per match.
Thats right. The conditions before the Golden age (1895 to 1914) were very much loaded in the bowlers favour. The conditions were much more even in the Golden Age but conditions most like todays with batting wickets and big scores came about all over the world after the end of the first world war. So one does have to make an allowance for that.
Ideally, I prefer to compare the cricketers post 1920. That is much more comparable.
As for the validity of the Wkts/Test criteria, well no criteria by itself can ever give you the complete picture. Let me illustrate.
I took a list of bowlers post WW1 and only those who took over a hundred Test wickets. Now you can try to rank them by different criteria like this. . .
By average (runs/wicket) you get
- Wardle
- Davidson
- Marshall
- Garner
- Ambrose
- Adcock
- Laker
- Trueman
- McGrath
- Muralitharan
Now Johnny Wardle was a terrific bowler and but for being incredibly unlucky (besides being unorthodox) he might have ended with much more than his 102 wickets (28 Tests) but he sits awkward at the top here. Then you have Murali three spots below Laker. Its well known that more runs per wicket are scored today than they were 50 years ago.
Alternatively we could take the strike rate but a major problem with strike rates is when comparing different types of bowlers. Spinners by and large have higher strike rates and the fast men the lowest. The medium pacers tend to be in between. So while it is a good criteria in many respects it favours brute force against guile to put it differently.
This list looks like (top ten again)
By Strike Rate (Ball/wkt)
- Waqar
- Shoaib
- Marshall
- Donald
- Thomson
- Trueman
- Lillee
- Hadlee
- Croft
- Holding
As I said, no spinners. No O'rielly, Grimmett, Warne, Murali, no one.
By the way, Dale Steyn is number 1 in the list but I have taken out bowlers who are currently playing and nowhere near the end of their careers.
Economy rate is another criteria but that does more or less the opposite. Faster bowlers with lower strike rates tend to have higher economy rates than spinners and vice-versa (by and large mind you). Here goes...
- Goddard
- Verity
- Wardle
- Tate
- Illingworth
- Tayfield
- O'Reilly
- Valentine
- Ramadhin
- Davidson
Eight spinners and two medium fast bowlers. The next two on this list of those with an economy of under two were also spinners - Titmus and Gibbs. Again the list has names you might not have on your short lists.
I have also tried with the frequency of five and ten wicket hauls and the results are not the best though that does give you better results than what we see above.
Now try
wickets per test and see what you get.
- Muralitharan
- Grimmett
- O'Reilly
- Steyn
- Lillee
- Hadlee
- Warne
- MacGill
- Kumble
- Marshall
Take away Stein for incomplete career and you have a very impressive list. Most contenders for the top spot are here. It is not a perfect criteria but I am afraid it is difficult to find anyone single which is. I am disappointed not to see Lindwall in that list for example. Someone else might be disappointed to see Imran missing but this is a statistical exercise after all.
Imran for example, did play long after he was no more a real strike bowler. So his strike rate as well as wickets per test would drop. The reasons will be different for different bowlers.
I think a wicket per test against non-minnows (over a long career) can be used as a fairly good indicator of a bowler's caliber - at least in the longer version of the game although it is still only an indicator albeit a very good one.
Let me put it this way. A 20 percent difference in bowling average (say between 20 and 22) is unlikely to tell much but a 20 % difference in wickets per Test (say between 5 and 4) says a lot.
Smaller differences dont tell much anyway irrespective of which index one uses.
Again its a personal opinion