Personally, I applaud Bethesda for taking on such a weathered mythological creature and so far seeming to make them not seem very cliche at all. With their own language, power sources, mythology, and even representation, TES dragons seem to be coming to life as a real part of the TES universe rather than just another "fantasy cliche" that is thrown in for monster diversity.
How do people feel about dragons being 'cliche' and whether or not they feel that way in Skyrim (so far)