I've heard about the bespoke pants from Ambrosi Napoli, but since I'm not planning to visit Naples in the nearest future, I decided to concentrate on RTW pants.
Who makes the best RTW dress pants?
Ambrose is offering RTW trousers at The Armoury and Brycelands now. Rota makes some incredible pants; you can find a good selection at No Man Walks Alone webstore. Panta NYC makes makes my trousers and also offers RTW....I think they are some of the best.