Right now, my 1978 Black Beauty. A couple weeks ago would have been my Slim, but I find the BB smoother and the extra blade feel goes for a superb first pass.
This is tough. Umm.... well for being able to get a great, irritation free, blindfolded shave, I'd have to go with my birthday razor, Gillette H2 ball end tech. Always delivers.
Fatboy. Can adjust based on growth and always gives me a great shave. Feels good in the hand, works well with multiple blades, and is just nice to look at.