Ethereum has been use widely for ICO purchase which have given this coin a high recognition. And also ripple has been on test for her technology in financial institutions to use since it can process trasactions than bitcoin. Will these two coins replace bitcoin and become number 1 on the coinmarketcap
If you set up a poll I'm sure 80 to 90% will agree that it's not going to happen, the gap on both coins are too wide, and all news on cryptocurrency very much focuses on Bitcoin, every coin's success and failure depends on Bitcoin's progress.