The single vent is an American abumination. I also hate 3 button suits, anyone who has a really fat tie knot, fused canvas, garish two-tone linings, and shirts with massive cuffs and massive collars.
I've only bought a Gieves & Hawkes personal tailored suit, which is still under construction (grey with very subtle pin stripe, 2 button, slightly angled pockets, no belt-loops, Cambridge Blue lining). Once my excellent tastes have reached some sort of equilibrium, it's time for fully bespoke.
My weekend wear looks something like this:
http://www.moviemaze.de/media/wallpaper/2033/goldfinger.html