.de is the most popular extension you have listed, but it won't be as valuable if the name is in swahili (Or English, I guess ).
.US is great for US based names, but not so great for theroyalfamily.us . (Not so bad)
.info is good if you're using it as an information domain... as in information about _____. Like cooking.info or something.
.org would be dandy for an organization (Or really great keywords), but that's about it.
-Allan