I'm having a hard time choosing which of the C languages I should go for, asking which is best will probably get me nowhere as I bet there are some split opinions on that subject.

But does anyone know the advantages/disadvantages with each one? As in what kind of programs the different languages are better than the other?
I don't really care which is the easiest to learn or anything like that, I might aswell do it the hard way aslong as it's somehow rewarding in the end