I find WWII games take the longest to set up, even after bringing down all of the gaming material which is stored upstairs. Getting the terrain layout is the major headache as, from experience, one poorly sighted set of hedges, houses etc can have a major impact on the game. I try and set up so that neither side is favoured, which is easier said than done.
For quick games with minimal set up, such as Lion Rampant, The Pikemen’s Lament etc win hands down. All I need is a 2’x2′ board (or larger for bigger games), a few pieces of terrain and away I go.
Packing away I hate as it seems to take so long compared to the set up, but in truth is probably much quicker as I’m not having to think about where to put terrain, deployment areas etc,