Nicknames, not quite the sort of aliases you're talking about cos they didnt really put records out under all these names, but it's still great seeing all these listed together, from the Wu Tang Manual:
RZA is aka The Abbot, Bobby Digital, Bobby Steels, Prince Rakeem, the RZA-recta, the Scientist, Prince Delight, Prince Dynamite, Ruler Zig-Zag-Zig Allah
GZA is aka Genius, Justice, Allah Justice, Maximillion, the Scientist, the Head
ODB is aka Dirty, the Professor, the Human Beat Box Specialist, the Specialist, Prince Delight, Ason Unique, Osirus, Cyrus, Big Baby Jesus, Dirt McGirt, Dirt Schultz, Ol' Dirt Dawg, Joe Bananas, Freeloading Rusty
Method Man is aka The Panty Raider, Methtical, Tical, Ticallion Stallion, Hott Nikkels, Hot Nixon, Iron Lung, John-John-John McLane, Johnny Blaze, John-John Blaizini, Johnny Dangerous, Shakwon, Ghost Rider, the MZA, Long John Silver
Raekwon is aka the Chef, Lex Diamonds, Louis Diamonds, Rick Diamonds, Shallah
Ghostface Killah is also known as Iron Man, Tony Starks, Sun God, Wally Champ, Tony Starks, General Tony Starks, Starkey Love, Pretty Toney
Inspectah Deck is aka Rebel INS, Rollie Fingers, Fifth Brother, Ayatollah, Manifesto, Charliehorse
U-God is aka Golden Arms, Lucky Hands, Universal God of Law, Baby U, Baby Huey, Four-Bar KIller, Ugodz-Illa
Masta Killa is aka Noodles High Chief, Jamel Irief