mostly flats with the pins. definitely for commuting. and .... "adventure" riding, just in case.
i have a couple set of Welgos and one set of Crank Bros that are spikey. My son has a set of Crank Bros platform with egg beaters in them, and they work great clicking in - put terrible as flat pedals.

trail rides and tri-hard rides with my tri-harder friends, I'll clip-in to the clipless pedals. and NEVER toe clips. for me, anyway....

ciao!