the thing that makes banjo-kazooie better than DK64 is that it's actually reasonable to try and get 100% without a guide
the collectables all follow a logical path/order, and there is a larger sense of accomplishment gained when you manage to 100% a level just by playing it naturally... imho that is what makes a good collect-a-thon
DK64, however, is essentially a test of the player's latent masochism