It is amazing if it turns out that it can, but I think to achieve it will certainly be difficult and it will certainly take years, until now bitcoint which is the number 1 crypto coint until now no one can surpass it
For ripple becoming number one crypto is not possible but it is possible that it become number one Altcoin. There is no big difference between the investment capital of ehtereum and Ripple and it is possible that in the near future Ripple over take Ethereum because most of the people like to invest in Ripple because the price is too low and great chances for growth.