It seems to have come down to either Sir Viv Richards or Chris Cairns.
Many are arguing innings-to-six ratio, or a percentage of runs scored as sixes as their arguments. Suppose these are both valid in their own regards and probably a factor in the whole equation in the end.
So maybe too is that Viv would have had to deal with the 'new ball' many more times at 3 & 4 than Chris Cairns with hit batting position of 6, maybe this why Viv was more circumspect (if you could ever call his batting circumspect!!!) when batting, afterall you don't want 30/2 to become 36/3.
Whereas Cairns would come in at 6 and either build on a teams start and make things better, or if the New Zealand team had a brilliant start he had a license to let-her-rip. I don't see him being as aggressive when New Zealand is 80-odd/5.
Makes me wonder what Viv's ratio per innings was when he walked in when the team was comfortable...
Makes me wonder what Test Strike Rates were... I bet they were both in a fair clip...
The fact that Viv tried and succeeded in hitting that many sixes and still managed to average 50+ has to figure into the equation too. Especially so when from the mid-eighties when Viv seemed to get bored in batting and his batting average declined.
Another point I will add is Viv could hit ANY ball ,from anyone, for six, he had no weakness, whereas Chris Cairns doesn't quite have that ability and is suspect in some areas.
Has anyone ever considered this from the bowlers perspective??? I bet you that any top bowler would back his chances against Cairns whereas against Viv they'd be praying for abit of luck.
Viv would hit the Hadlee's & Lillee's out of the attack. Cairns just mostly murders the change bowlers, abit like Hick in his day.
Overall my pick would be Viv over Cairns, there's too many times Viv ALSO hit sixes in pressure situations when his side needed runs, 189* in 1984 which included an unbroken 106 for the 10th wicket (ironically with Holding, who got 10 or so, though has been mentioned in this thread), 110* in 58 balls in 1986/7 (100 in 56) against the new ball when they needed a declaration, the time he put it out of the ground into a pond in England after he played and missed 3 times (to Thomas was it???) and was 'shown what a ball looked like', then telling Thomas that 'he knows what it looks like why don't he go fetch it'.
Front foot, back foot, off-side, leg-side, short or full, Viv put them into the stands, and people would travel 100's of miles or Km's to come see it. Cairns doesn't have that Aura.