my real test is when to each put up their own money and play a long race for it on neutral conditions.
that brings out the best and worst in them.
Not my real test. Stamina has nothing to do with pool greatness. If two players play a $100,000 race to 13 once a day, day after day, you'll find out who is the better player within a couple of weeks, not which player can play on and on and on and on.
Of course, these days nobody bets their own. It is largely myth that the top guys usually bet their own in the 1980s, too. For a big stake, give a player a choice between betting their own or risking nothing but getting 30% of the profits if they win and they'll rarely choose the first option. It is true today, and it was always true.
The myths grow larger with time. I recall the night of Jack Cooney's induction into the one pocket hall of fame several years ago. One speaker commented that he admired Jack for betting his own. The next speaker spoke of how often he was Jack's stake-horse.
Of course, there's no better test of pedigree than putting all the great players in the same place at the same time and see who's the last man standing. To win at the majors, there's no getting comfortable with any opponent. You have to beat a multitude of tough opponents, each having a different style and each having different strengths and weaknesses, and you might play each of them on a different table. That's a much tougher assignment than gradually wearing down a single opponent.
If we go by action results, Jack Cooney is probably the best player of all time, but it's not about money won, it's about regularly dismissing the most elite players in the biggest spots. If it were about the money, the tycoon with a Fargo of 520 who won 10,000,000 gambling with another tycoon having a Fargo of 520 would dominate the pages of AZB for having won more than four times the money that Efren made in his entire career.