There are several exceptional wicketkeepers I've seen:
Jack Russell, Rashid Latif, Khaled Mashud (not watched him that much, but I've barely seen him fumble a single ball), Ian Healy, Chris Read, Keith Piper, Moin Khan, Romesh Kaluwitharana, Adam Parore, Tatenda Taibu.
Of the best of all-time, there's always talk of Don Tallon, Bert Oldfield, Godfrey Evans \ Keith Andrew, Bob Taylor (the only one I've seen extensively, and he was sensational - especially given that 32 of his Test-caps - over half his career - came after his 40th birthday), Wally Grout, George Duckworth, Deryk Murray, Wasim Bari, Ian Smith, Rodney Marsh and probably quite a few others.
The outstanding wicketkeeper by some consent was Jack Blackham, who stood-up to the pace of Frederick Spofforth (which C_C would seek - without any idea of what he's on about - to talk down) and others on the evil pitches of the 10th-century with wicketkeeping equipment that, frankly, was unacceptible for such a job.
Bit surprised no-one mentioned him yet.