C is a great letter, so is X. On the other hand, B is rubbish.
For no good reason I reckon the alphabet would be better if it all the letters could be phonetically spelt without resorting to recursion, it should be possible to spell a letter without using that letter itself. So G is good because it can be spelt jee, X can be spelt ecks, but D can only be spelt dee.
I dunno why I think this is a good idea, perhaps because it would introduce a degree of redundancy into the alphabet. In some terrible post-apocalyptic future when the world has run out of K or I, we can replace them with cay or eye and carry on living an almost unchanged literary life.