Campganolo--------Shimano
------------------------2200
Mirage----------------Sora
------------------------Tiagra
Veloce-----------------------
------------------------105
Centaur--------------Ultegra
Chorus----------------------
------------------------Dura-Ace
Record----------------------
-ish
Some folks think Veloce and 105 are on a par, some people say Ultegra's better than Centaur. The Shimano purists say Dura-Ace is as good as Record.