Today, there are many new digital currencies, but still bitcoin has a huge advantage in front of them-it is over its improvement and new products based on it that the best minds work, it is bitcoin projects that attracted huge investments from venture investors and corporations. Bitcoin has the largest community of supporters. I think that hardly the same success can be repeated by any other new cryptocurrency in the near future.
No, Ethereum is the 1st coin in the GPU mining community. In my country, the total number of people mining Bitcoin is lower than GPU mining Ethereum so much! Because the cost to mining Ethereum is cheaper than Bitcoin. Hardware to mining Ethereum is also buy easier than Bitcoin Asic from China.