Chino Moreno- one of the best vocalists in my point of view. He can go from quiet melodic singing to maniacal shouts in a matter of a verse to chorus change.
Chi Cheng- one wicked bassist. His style is undefinable. He uses rap-like rythms, raggae-tinted phrases, heavy riffs, basic rock beats, and much more.
Stephen Carpenter- This guy is awesome. He has got one of the best guitar tones ever. Crunchy and crisp distortion and nifty guitar effects along with his unique style make his style a melting pot of many different genres, including punk, rock, and hip hop.
Abe Cunningham- Abe is the glue of the deftones rythms. He ties everything together with his tightass beats.