How convenient.. If thats the case, why we do this?
Murali vs Warne - Remove minnows
Sachin vs Viv - consider era difference
Botham vs Kapil - check performance against stronger teams..
Etc.
I am not talking about Injury or Diabetes.
Helpful wickets, weaker opponents, better fielding support, longevity.. Etc should be factored when analysing a player.. Thats commonsense. And we do that all the time except for fielding support.
The comparisons you list above are actually quantifiable. And also let's be honest.
Warne vs Murali, most who pick Warne (especially some Aussies) is because they believe Murali chucked, others because they believe Warne was a more complete cricketer, some still because of bias.
Sachin vs Viv is about consistency vs peak and destructive ability. Never heard the era argument.
With regards to Botham, it was obvious looking at his actual numbers, who he performed better against. Easily quantifiable.
What you want to do for Wasim, is to arbitrarily lower his numbers based on dropped catches. How do you even go about doing that? Every player had challenges, and while I'm sure dropped catches cost Pakistan matches, it impossible to quantify how much it impacted Wasim's average. And quite frankly if the team didn't see it as being being important enough to address over his career, why should I?
Sobers bowled as much as a front line bowler throughout his career, should we adjust his average up?
Atherton faced much better bowlers than any other opener in history, and consistently. Ambrose & Walsh, Wasim & Waqar, Donald & Pollock etc. Do we raise his average or do we look at his as mediocre? Dev had the absolute worst home pitches to bowl on, even though it's factored in to a small degree, he averaged, what he averaged and he's not seen as a great bowler.
You want to list every excuse for Wasim and use that to say he was the absolute best, it doesn't work that way. He's arguable top 10 and definite top 15 bowler of all time, even among those who accepted his fielding woes. If you want to say he was talented, all agree, but there wasn't a doubt that McGrath was more effective, Marshall was just as talented, quicker and also more effective. And that's not even looking at the higher amount of lower order wickets, the wpm or the bottle tops.