it is actually only four points minus the minnows.... same goes for s.waugh with 2 points over lloyd when you take out tugga's record against zim/bang.
of course, i havent gone by numbers in my rankings. why would i put warne and ambrose on equal plane otherwise? or warne above garner and holding? or gilchrist at no.3 when many other batters averaged more than him? or richards over and above everyone else? this is not about stats alone. not that you said it like that; just dont want to get into numbers again. so am being extra cautious.
I am not doing a straight averages comparison because, of course, the eras are different - the circumstances different but I'll address some points.
You make a point about minnows but if you are going to rate his average lower because of the era he played in, you should actually only consider when he played in that era - for Hayden also has Tests in the 90s which drag his average down. His average in the 00s is 51 (which IMO still undersells him) which is a difference of about 6 runs per average when you consider the era.
However, with Waugh it is a different discussion to me. He was an all-rounder and only later on developed into an all-time great bat in his own right. At his peak he was as good if not better than Lara and Tendulkar were at times (especially considering the weight of runs he scored against the fine attacks of his time). That he started off that way and only started rectifying his record in the 90s, yet finished with a 51 average is a testament to him. BTW the difference between Lloyd and Waugh is closer to 4 runs than 2 and in this case Waugh played in the harder era.
As for your point re bowlers: Warne is a spinner. It'd be, IMO, incorrect to do a straight averages/SR comparison with pace bowlers without taking that into account.
I actually put Gilchrist on a similar plane to Waugh than I would above him, so I think you are overrating him in that instance. However, even statistically speaking his SR is so high it can rightfully allow someone to rate him higher despite a slightly lower average than other batsmen. His consistency (or as me and you call "completeness" across countries is also commendable. It belies his risky nature.