Hope you don't mean me when you say "people". I believe Jack is the greatest cause he has the most majors. Period. Even Tiger agrees with that.
Anyways...I digress...
Comparing Jack and Tiger's respective accomplishments at at 36 is one discussion( as you stated...Tiger has the better record). Comparing both when their careers are over is another discussion(i.e. who is the greatest of all time). That will be a summation of all their accomplishments (i.e. Most Major Wins). And if Tiger is to better that Major total he will need to equal Jacks "post 35" era (i.e. 5 majors). So far in that era, Tiger has zero. Tick Tock.
So you basically agree with me when your evaluation stems on purely what happens/happened when they are both past their prime. So give me your evaluation for the first 36 years.