If you look at the last 5 years

Masters
05 Woods
04 Mickelson
03 Weir
02 Woods
01 Woods

British open
05 Woods
04 Hamilton
03 Curtis
02 Els
01 Duval

PGA

05 Mickelson
04 Singh
03 Micheel
02 Beem
01 Toms

US Open

05 Campbell
04 Goosen
03 Furyk
02 Woods
01 Goosen

Thats:
5 for Woods
6 for the other 4(Els, Mick, Goose and V.J.)

If you look only at the BIG 4, it drops to 4 cause Goosen has 2 of the 6...Either way, with the insert of the lesser than Big 5 at so many of the majors its a safe bet that more "ALSO RANS" will win more than any of them.....in the next 4 years anyway...