Buffon has been choses as the best GK of the last 23 (No idea were this number comes from) years accroding to the IFFHS.
1. Gianluigi Buffon Italia 87
2. Iker Casillas España 73
3. Peter Schmeichel Danmark 69
4. Oliver Kahn Deutschland 62
5. Edwin van der Sar Nederland 60
6. José Luis Félix Chilavert Paraguay 58
7. Walter Zenga Italia 55
8. Petr Čech Česká Republika 50
9. Michel Preud’homme Belgique 43
10. Claudio André Taffarel Brasil 40
http://www.iffhs.de/?b88d85ff8b00388f05f4cbc0385fdcdc3bfcdc0aec28d6edb8d415