Blond is a bonus, but I don't really have a "type", I just like visually striking/interesting. There has to be a special undefinable something that appeals to me. Blondes just tend to have an easier time hitting that mark, it seems.
To me, the clothes and accessories really make a big difference. A blonde with bright colorful clothes goes big for me. A redhead with purple, green or silver is also fantastic. Brunette if fully naked.