I remember enjoying the actual raven's progressive matricies test as a kid.
My mother has a masters' degree in Gifted education, so we always got to try out the new version of the tests.
I think one has to keep in mind the limitations of the IQ test, and the concept of IQ as a whole. This goes beyond even Howard Gardener's Multiple intelligences (A theory that might help explain Baldgye's various scores)
The most common IQ test is probably the Stanford-Binet. I took the wechsler as a kid, which has it's limitations (it's possible to "max out" sections, leaving no upper bound to the IQ estimation.)
I don't put much stock in these online IQ tests (or in IQ in general, come to think of it), but they can be fun.