Painted White Or Stained Trim?

I've been a painting fool this past week, with the kitchen and trim.  We've also been replacing some of the rotten/gross baseboard and casement moulding in the hall and family room with fresh new wood.  It's gotten me thinking about how to finish the wood trim.  I've always preferred crisp white trim, but stained wood can be very attractive as well. What do you prefer?  White trim?

traditional living room design by portland interior designer Garrison Hullinger Interior Design Inc.

traditional entry design by charleston architect Wayne Windham Architect, P.A.

contemporary bedroom design by san francisco design-build Urrutia Design

contemporary bedroom design by minneapolis interior designer Martha O'Hara Interiors

traditional family room design by dallas design-build Hull Historical

Or do you like stained trim?

traditional hall design by charleston architect Frederick + Frederick Architects

traditional kitchen design by chicago kitchen and bath Rebekah Zaveloff

contemporary hall design by san francisco architect Noel Cross Architect

contemporary living room design by new york architect David Howell Design

eclectic family room design by new york architect Neuhaus Design Architecture, P.C.

I'm painting our trim white but some of the pictures of the stained trim are awfully beautiful.  Maybe next house...kidding!