Following on from the Rolling Stones Top 250 Guitar Players List, it’s clear that there are notable players missing:

Most Importantly:
Alan Holdsworth (above)
Guthrie Govan (below)

Others missing include:
John Abercrombie
George Benson
Chet Atkins
Glen Campbell
Tommy Emmanuel
Stevie Stevens
Al DeMeola
Gary Moore
Peter Frampton
Joe Pass
Andrés Segovia