I'd go for Brett Lee as the McGrath-Lee-Warne trio was the most successful trio of bowlers in the history of cricket. Incidently, the McGrath-Gillespie-Warne trio was the second most succesful and that makes your overall attack even better.
It Figures | Cricket Blogs | ESPN Cricinfo
1945-1977 ATG Draft: Desmond Haynes - Roy Fredericks - Rohan Kanhai - Neil Harvey - Clive Lloyd - Asif Iqbal - John Waite - Ray Lindwall - Garth McKenzie - John Snow - Derek Underwood
ATG XI: Jack Hobbs - Len Hutton - Don Bradman - Brian Lara - Graham Pollock - Gary Sobers - Alan Knott - Malcolm Marshall - Shane Warne - Dennis Lillee- Sydney Barnes