ERC20 tokens are a pain in the ass. When looking for new altcoins I would rather download a new blockchain/node than add another token. Why is this? because I have attempted to download the enormous Ether BChain and never can complete the final 250 to 300 blocks. (I have read & tried many fixes...but it remains a pita).
If I feel this way, there are hundreds of thousands of others with same opinion.
In looking for Ethereum competitors, I found an article from Medium: 2018 Blockchain-as-a-Service (BaaS) Platform It compared the six top cryptos for business. The comparison was unbiased and provided clear comparisons. Ethereum has peaked. Looks like best competitors are XLM (Stellar) or ARDR (Ardor). In my opinion, I would bet on ARDR due to zero transaction cost and has a solution for blockchain bloat (big issue for me). the article can be found here ->
https://medium.com/@dennis_z/2018-blockchain-as-a-service-baas-platform-review-part-i-a5483321dfb8For now, Etherum is the best solution for ICOs. So I believe it will not lose its dominance anytime soon. Surely, not this year.