Is buffered creatine superior to creatine monohydrate?

No. Despite the efforts of marketing experts, there has been no scientific proof that “buffered creatine” is better than creatine monohydrate. The study has nicely shown that there is no difference between preparations. Neither in muscle performance, in creatine content in the muscle, nor in weight gain.

So, save yourself the money and stick with the monohydrate.