My ideal suit would start with the subtly windowpaned fabric seen here: The jacket would be a bit longer than is fashionable, the notch lapels would be slightly larger than is fashionable, and the jacket would be slim throughout but have lightly structured shoulders. I'd choose a 3-roll-2.5 with patch pockets. The trousers would have buttons for braces and side adjusters, no belt loops. They'd have minimal break and would taper to a 7.5" leg opening. The overall silhouette would be similar to the one shown here: I would wear it to take my wife out to celebrate winning a free suit!