Bitcoin is better than any other cryptocurrency for a simple reason that other cryptocurrency such as Litecoin and Dogecoin could hardly be used to purchase for retail commodities even if they are accepted by the dealers. And they are usually used for investment or storage value.
well, Bitcoin is the ORIGINAL idea for the whole cryptocurrency thing and others are just copies or immitations in other words, and sometimes with some innovations or changes but nothing significant YET.
Agree.
I thought OP didn't know about bitcoin since beginning.