I went from a Phillips razor to a Braun and I would never go back, The Braun works much better for my beard growth, the hairs just never caught the heads on the Phillips for some reason.
I can remember reading in a magazine of a test they did between all the different bladed razors and the twin blades came out on top. They said it is due to the higher PSI the 2 blades exert over the 3 or 4 bladed versions they tried, the skin is stretched out more with the twin blades allowing for a closer shave.