According to the ICC ranking system...?

I think that what you had shown is the peak form achieved by a player. It does not indicate the level of game played by a player looking at his entire career. While I have no arguments about Bradman, I feel that George Headley who was known as Black Bradman (in fact, his fans called Bradman as 'the white Headley') should have been a number 2 to the Don. Jack Hobbs had such a phenomenal performance that he should have been at number 3. Brian Lara dominated batting so greatly that I feel that he should have been at number 4. I feel that Len Hutton should be at number 5 but not number 2. Then you have RG Pollock, Wally Hammond and Sangakkara. Glenn Turner had few good series but not consistent enough to be there at the very top. Mark Richardson is NZL's alltime best test match batsman.