I don't look at any statistic when invited for a game, I will play against anyone as long as they aren't an @rse or a quitter.
Statistics on here are only a good indication of ability if the players have been playing for roughly the same time. Players who were playing when the standard of balls and clubs were a lot lower than they have been for the last 18 months will have their statistics dragged down. As an example I illustrate my own.
In August 2011 I completed my 5,000th ranked round. Stats were;
Eagles 415
Birdies 23,460
Pars 29,529
Bogeys 3,939
Doubles 381
Others 56
This is the equivalent of 3,210 full 18 hole rounds. Holes played under par is 42.32%
Currently I have played 7,299 ranked rounds and the totals are;
Eagles 988
Birdies 37,071
Pars 40,196
Bogeys 4,616
Doubles 422
Others 56
This is now the equivalent of 4,630.5 full 18 hole rounds. Now the holes played under par percentage increases to 45.67%. If however you take the difference between the totals, over the last 1,420.50 full 18 hole rounds the holes played under par percentage increases to 55.48%.
Put another way, average birdies per round, the stats are 7.31, 8.01 & 9.59 for the same periods.
I don't believe for a minute anyone would go into the depth I have here when assessing who to play but these stats show there is a huge difference in my play over the last 18 months, compared to the first 18 months. This is of course before you even consider a percentage completion of ranked rounds started.