All the desktops in the 68k section are named "Macintosh [model]". I think this is a bit cumbersome since all the desktops will show up under "M" in the alphabetical listing, whereas it would be better to use model names only, like Performa 6300CD or Quadra 610 (you'll notice that those two computers have pages not linked to their respective listings on the desktops page).
I can see going with "Power Macintosh/Performa 4/5/6/7/8/9xxx" for the 1st and 2nd generation PowerMacs, since "PowerMac G3/G4 (code name)" as has already been done for the G3 and G4 machines. But the earlier machines are bes recognized by their model name - having "Macintosh" before every name on a Mac Guide is a bit redundant.
I can see going with "Power Macintosh/Performa 4/5/6/7/8/9xxx" for the 1st and 2nd generation PowerMacs, since "PowerMac G3/G4 (code name)" as has already been done for the G3 and G4 machines. But the earlier machines are bes recognized by their model name - having "Macintosh" before every name on a Mac Guide is a bit redundant.