Based on whatever criteria you'd like. Collectible value, sentimental value, whatever. I don't follow the super high end stuff that well, but I guess mine would be something like:
Razor: Darwin DE
Brush: Authentic pre-ban Ivory handle shaving brush (did Rooney, Simpson, Plisson, etc make these?)
Blade: Personna 74 blades
Soap: NOS/mint vintage Yardley
AS: I don't know the "Holy Grail" of aftershaves. Something vintage from Penhaligon's or something?
Whadda you'se guys think?