You're saying observation and keep up with the news doesn't count. I can understand that when you don't watch tennis while the rest are.As expected, you cannot produce a list of majority opinion, as it does not exist, not to mention players who have flip-flopped on the matter over the years.
Federer simply lacked the ability to show concentrated dominance over the field during a single season of majors like Laver, so he's a successful player, but not in the serious conversation of the greatest.
And since you suggest everything must be proven to have any merit, then it's perfectly fine if someone say Henin/Seles are superior player Serena and vice versa. Because by your logic, this can't be proven(no list of majority), and opinion from both sides are equally valid.
Shoulda, woulda, coulda means nothing to the long recognized standard of supreme accomplishment.
the "woulda" "shoulda" are coming from both sides(even you use it quite often) and it leads nowhere. That's why I came up with the stats that is the most objective method to determined who's the greatest player.
http://tt.tennis-warehouse.com/showthread.php?t=387860(Thanks to Agassifan for creating the thread)
Most GS titles
1. Roger Federer 17*
2. Pete Sampras 14
3. Björn Borg 11
= Rafael Nadal 11*
5. Jimmy Connors 8
= Ivan Lendl 8
= Andre Agassi 8
8. John McEnroe 7
= Mats Wilander 7
10. Stefan Edberg 6
= Boris Becker 6
GS finals
1. Roger Federer 24*
2. Ivan Lendl 19
3. Pete Sampras 18
4. Björn Borg 16
= Rafael Nadal 16*
6. Jimmy Connors 15
= Andre Agassi 15
8. John McEnroe 11
= Mats Wilander 11
= Stefan Edberg 11
Consecutive GS finals
1. Roger Federer 10
2. Roger Federer 8
3. Rafael Nadal 5
4. Andre Agassi 4
= Rod Laver 4
= Novak Djokovic 4
7. Jimmy Connors 3
= Björn Borg 3
= Björn Borg 3
= Björn Borg 3
= Ivan Lendl 3
= John McEnroe 3
= Ivan Lendl 3
= Ivan Lendl 3
= Mats Wilander 3
= Jim Courier 3
= Jim Courier 3
= Pete Sampras 3
= Rafael Nadal 3
GS semi-finals
1. Roger Federer 32*
2. Jimmy Connors 31
3. Ivan Lendl 28
4. Andre Agassi 26
5. Pete Sampras 23
6. John McEnroe 19
= Stefan Edberg 19
8. Boris Becker 18
9. Björn Borg 17
= Rafael Nadal 16*
Consecutive GS semi-finals
1. Roger Federer 23
2. Ivan Lendl 10
3. Novak Djokovic 9*
4. Ivan Lendl 6
= Nadal 6
6. Novak Djokovic 5
= Boris Becker 5
8. Roger Federer 4*
= Rod Laver 4
= Tony Roche 4
= John McEnroe 4
= Andre Agassi 4
= Jim Courer 4
= Nadal 4
= Andy Murray 4
GS quarter-finals
1. Jimmy Connors 41
2. Roger Federer 38*
3. Agassi 36
4. Ivan Lendl 34
5. Pete Sampras 29
6. John McEnroe 26
= Stefan Edberg 26
8. Boris Becker 23
= Rafael Nadal 23*
9. Novak Djokovic 22*
10. Björn Borg 21
Consecutive GS quarter-finals
1. Roger Federer 34*
2. Ivan Lendl 14
= Novak Djokovic 14*
4. Rafael Nadal 11
5. Pete Sampras 10
6. Ivan Lendl 7
= Mats Wilander 7
= Andy Murray 7
9. Andre Agassi 6
= Rafael Nadal 6
All Four Slams Per Year
Rod Laver 1969
Three Slams Per Year
Jimmy Connors 1974
Mats Wilander 1988
Roger Federer 2004
Roger Federer 2006
Roger Federer 2007
Rafael Nadal 2010
Novak Djokovic 2011
All Four Finals Per Year
Roger Federer 2006
Roger Federer 2007
Roger Federer 2009
Rod Laver 1969
All Four Semi-finals Per Year
Rod Laver 1969
Ivan Lendl 1987
Roger Federer 2005
Roger Federer 2006
Roger Federer 2007
Roger Federer 2008
Roger Federer 2009
Rafael Nadal 2008
Novak Djokovic 2011
Andy Murray 2011
Most consecutive matches won at one Grand Slam event:
1. Björn Borg (Wimbledon), 41
2. Roger Federer (Wimbledon), 40
= Roger Federer (US Open), 40
4. Pete Sampras (Wimbledon), 31
= Rafael Nadal (French Open), 31
Most consecutive Slams played:
1. Wayne Ferreira 56
2. Stefan Edberg 54
3. Roger Federer 52*
4. Fabrice Santoro 46
5. Dominik Hrbatý 44
6. Feliciano Lopez 43*
7. Tommy Robredo 41
8. David Ferrer 40*
9. Mark Woodforde 37
=. Jonas Björkman 37
Most Grand Slam match wins
2. Roger Federer 248*
2. Jimmy Connors 233
3. Andre Agassi 224
4. Ivan Lendl 222
5. Pete Sampras 204
Other Stuff:
Year-End Championships
1. Roger Federer 6*
2. Ivan Lendl 5
= Pete Sampras 5
4. Ilie Nastase 3
= John McEnroe 3
= Boris Becker 3
Most Weeks at #1
1. Roger Federer 297+*
2. Pete Sampras 286
3. Ivan Lendl 270
4. Jimmy Connors 268
5. John McEnroe 170
6. Björn Borg 109
7. Rafael Nadal 102*
8. Andre Agassi 101
9. Lleyton Hewitt 80
10. Stefan Edberg 72
Consecutive Weeks at #1
1. Roger Federer (1) 237
2. Jimmy Connors (1) 160
3. Ivan Lendl (1) 157
4. Pete Sampras (1) 102
5. Jimmy Connors (2) 84
6. Pete Sampras (2) 82
7. Ivan Lendl (2) 80
8. Lleyton Hewitt (1) 75
9. John McEnroe (1) 58
10. Rafael Nadal (1) 56
Year End #1
1. Sampras 6
2. Federer 5*
3. Borg 4
4. Connors 3
= Lendl 3
= McEnroe 3
Highest Season Winning Percentage
1. John McEnroe (1984) .965 82–3
2. Jimmy Connors (1974) .959 93–4
3. Roger Federer (2005) .953 81–4
4. Roger Federer (2006) .948 92–5
5. Björn Borg (1979) .933 84–6
6. Ivan Lendl (1986) .925 74–6
7. Roger Federer (2004) .925 74–6
8. Ivan Lendl (1985) .923 84–7
9. Ivan Lendl (1982) .922 106–9
10. Björn Borg (1980) .921 70–6
= Novak Djokovic (2011) 0.921 70-6
Most ATP Titles
1. Jimmy Connors 109
2. Ivan Lendl 94
3. John McEnroe 77
4. Roger Federer 75*
5. Björn Borg 64
= Pete Sampras 64
7. Guillermo Vilas 62
8. Andre Agassi 60
9. Sampras 6
= Rafael Nadal 50*
10. Boris Becker 49
Consecutive Match Win Streak
1. Björn Borg 49 1978
2. Björn Borg 48 1979–80
3. Guillermo Vilas 46 1977
4. Ivan Lendl 44 1981–82
5. Novak Djokovic 43 2010–11
6. John McEnroe 42 1984
7. Roger Federer 41 2006–07
8. Thomas Muster 35 1995
= Roger Federer 35 2005
10.Jimmy Connors 33 1974