Here is my list of 10 recent composers/pieces of very high quality ...
Glass - Anything
Feldman - Anything
Cage - Number Pieces (works composed 1987-1992)
Nyman - Anything
Hovhaness - Anything
Gordon - Anything
Reich - Anything
Stockhausen - Almost Anything
Ligeti - Almost Anything
Erb - Almost Anything
Many will disagree. This is OK.
Glenn Freeman
http://profiles.yahoo.com/glennfgrfnorg