For me, the ultimate is Kodachrome. I have 2 rolls of K25 in the fridge, and quite a few rolls of K64 as well. For C41 it's Porta 160NC and Reala 100. If I want more contrast I'll go for a Fuji; haven't tried the Kodak higher contrast films.
B&D: I'm thinking of picketing State Street with a "Don't Take My Kodachrome Away" sign. What do you think?