I would say Epic is perfect for what you're describing. My feeling is Epic with the jeans-'n'-jacket, Silver with the matching slacks. Silver is just a tad more formal to my nose. Epic is a bit more on the rowdy side.
Silver is my second favorite in the line. It lasts as day wear and transitions to evening if you don't have a chance to refresh due to longevity. Epic has a great longevity as well but comparing the two is apples and orangesl
This thread is from 2010.. I had Epic in my collection, but its nuclear power sillage and longevity was too much for me to tolerate. I swaped the bottle. Silver on the other hand, has become one of my favorits. Classy and sophisticated. One of the best from Amouage, and very underrated.