On a boring Sunday, I felt it would be nice to make these list now when there is no cricket and the priority is social distancing.
Below I have tried to list down the ATG cricketers that have been produced in each decade. Starting from 1970s to 10s, below is my list.
1970s
Lillee
Chappell
Roberts
Gavaskar
Willis
Total - 6
1980s
Viv
Marshall
Garner
Holding
Imran
Miandad
Hadlee
Botham
Border
Kapil
Total- 10
1990s:-
Shane Warne
Steve Waugh
Allan Donald
Shaun Pollock
Curtly Ambrose
Courtney Walsh
Brian Lara
Wasim Akram
Waqar Younis
Sachin Tendulkar
Total- 10
2000s
Ricky Ponting
Glenn McGrath
Adam Gilchrist
Jacques Kallis
Dale Steyn
Rahul Dravid
Muttiah Muralitharan
Kumar Sangakkara
Total- 8
2010s
Virat Kohli
AB de Villiers
Steven Smith
James Anderson
Total- 4
To conclude, 1980s and 1990s have been the decades where we had highest number of truly great players as the count is 10. 2000s was very close with 8 and there has been drastic fall in previous decade with the count being only 4.
I know a strong case can be made for many more cricketers but it will ultimately become subjective.
Discuss!

Below I have tried to list down the ATG cricketers that have been produced in each decade. Starting from 1970s to 10s, below is my list.
1970s
Lillee
Chappell
Roberts
Gavaskar
Willis
Total - 6
1980s
Viv
Marshall
Garner
Holding
Imran
Miandad
Hadlee
Botham
Border
Kapil
Total- 10
1990s:-
Shane Warne
Steve Waugh
Allan Donald
Shaun Pollock
Curtly Ambrose
Courtney Walsh
Brian Lara
Wasim Akram
Waqar Younis
Sachin Tendulkar
Total- 10
2000s
Ricky Ponting
Glenn McGrath
Adam Gilchrist
Jacques Kallis
Dale Steyn
Rahul Dravid
Muttiah Muralitharan
Kumar Sangakkara
Total- 8
2010s
Virat Kohli
AB de Villiers
Steven Smith
James Anderson
Total- 4
To conclude, 1980s and 1990s have been the decades where we had highest number of truly great players as the count is 10. 2000s was very close with 8 and there has been drastic fall in previous decade with the count being only 4.
I know a strong case can be made for many more cricketers but it will ultimately become subjective.
Discuss!