Down the middle for me. I love a good wool or PV 8 yd tartan like the rest of them but also see a time and need to throw on a Camo or solid when the right situation arises.
I do insist though that they be custom and good quality. I don't see the need for an ill fitting off the rack cheapy. I prefer they fit me weather they are a casual cut or full trad. style.

Kilted Stuart