I love the white painted brick houses which are so popular in Holland, Belgium and Denmark.

Blue with white trim.

Unpainted Red Brick with Dark Green Trim and a Slate Roof - Because brick is zero maintenance.

Gray. Pale gray or a darker gray, not charcoal. My family lived in a gray cedar shingle house with green trim when I was a child (Pacific NW), and now I live in a desert metro area in a gray block house with white trim and raspberry front door. A second choice would be green (not lime green).

Love the khaki/grey color with black trim and a red door. So classy!
Tabitha @ http://www.fromsingletomarried.com

Call me crazy but my dream would be to retire in one of these brightly colored Caribbean casitas or a weathered, beautiful apartment near the local Plaza Major.

http://s154.photobucket.com/albums/s246/ddavila2001/?action=view&current=puri10400.jpg

http://s154.photobucket.com/albums/s246/ddavila2001/?action=view&current=CB065077.jpg

How about white? White always works so why isn't it even one of the options?

I love tropical bright combinations, but I also love brick, stone, and exposed weathering wood - I guess it depends on where I am when I finally have an exterior to pick...

Natural. i.e. unpainted wood (esp weathered cedar), brick or concrete block (among others). Let the materials speak for themselves and bring their own beauty.

a variety of colors for rowhouses is essential.
so the perfect color of your house depends on whats around.

I love the bright colours of the houses in Newfoundland. Living somewhere foggy adds appreciation for bright colour

http://www.flickr.com/photos/hueycheah/289815605/
http://www.flickr.com/photos/jonathanpenney/75630000/
http://www.flickr.com/photos/94964495@N00/438923732/
http://www.flickr.com/photos/23213994@N02/2828210522/
http://www.flickr.com/photos/karbon69/974311748/

Navy or Midnight Blue with white or pale gray trim with a yellow door.

dark grey with shiny black trim.

or ... dorothy draper style....black with bright doors.

For me the color depends on many things- the architecture, the materials- brick, stucco, adobe, metal/glass, etc.. and the surroundings where the house is located. I think certain materials look better in certain colors.

Grey with white trim.

silvery gray with bright white trim and a brightly colored front door (cherry red, azure, kelly green, chrome yellow--something fun and cheerful).

The brightly intense colors you see on houses on the west side in my hometown of San Antonio. They have so much character.

Violet. :P

Alas the historic society will not even let me THINK about what color to change the exterior of my house.

Speaking of which- I LOVE that Row of houses you have pictured. I walk by them on 16th street. My fav thing is during the holidays, each house lights a window candle. It is the loveliest site driving down 16th- even for my usual 'unfestive' self.

i like a bold color, like a deep brilliant blue-purple, with black and cream trim and a high gloss black door

I love rows of colours, unexpected colour combinations, that whole paintbox look... gorgeous shades on Victorians... my dream is to live in one of San Francisco's Painted Ladies!

http://i35.tinypic.com/f2omrt.jpg
http://i35.tinypic.com/2uynaxe.jpg
http://i38.tinypic.com/24nn2j4.jpg
http://i34.tinypic.com/30lkz2o.jpg
http://i38.tinypic.com/flxe03.jpg

(How can you say no to your very own turret? :D *covets madly*)

None of the above - those tones are too muddy for me. I like white, personally, or greys and taupes - one of the best things about these tones is that foliage looks much more striking against them. Colour can be great, but it's hard to pull off I think and has to be right. Brilliant tones look great in the tropics but are harder to do in older cities, unless they really work with the architecture - eg. gingerbread San Francisco Victorians in yellow and lime green and other bright hues. Totally fantastic. If I went for colour it would be in one of those shades. But as others have pointed out, context is everything - it matters what's next to it - other houses, quality of the light, trees, landscape etc.

I love yellow (not too mustardy) with white trim. Depending on the yellow it works with almost any style of architecture and it looks cheerful and fresh. It also sets off dark shiny green foliage beautifully.

I think, if form follows function, chroma should follow loca.

The house paint and materials just need to complement the geography, geology, history and personality of the place.

As far as pink and purple? I've never met anyone who lived in a lilac house that I didn't like!