This is basically what is being done here.
No offense.
That's just one analogy.
Both have huge issues.
Every coin is attempting to make (a new type of) money, but some of them are better at it than others--if you want the same old fiat, you'll get what you want, just don't count on one of the riskiest experiments ever (cryptocurrency) to provide you with more of it.
As to which is a better technology--that's like asking which Manning brother would make a better Shakespearean actor (I'm sure one would be less terrible than the other, but that doesn't mean either is good).