Will Ripple XRP be the number one cryptocurrency before the end of the year?
While such market there is no, it is more likely that cardano or stellar breakthrough into the top is a more likely event. It remains to wait for the general growth.
None of the above because bitcoin will still be the number one coin. I know XRP a bit more aggressive on their approach in the market but bitcoin is still the trusted coin right now and for sure it will grow also and makes it more unstoppable on the top one position.
Indeed Riak is very aggressive and I also don't think Riak will be the number one coin. Bitcoin is still strong and has a high character to beat. It takes a long time and a reliable strategy to defeat it.