ETH is my favorite one due to its long-term sustainability, resilience, and erc20. Nevertheless, if I have to put it aside, I'm also a big fan of ADA, IOTA, and NEO. Among ICO's, however, I'd say that my favorite ones are SwissBorg, Restart Energy, Monero, Cointed, and Giftz. All of them are great as projects and their profitability cannot be denied, let alone their resilience. The last two, Giftz and Cointed, I believe, are still on the market, so it's not too late.
Another two ICO's grabbed my attention lately:
1. Omnitude - https://concourseq.io/Q/Omnitude
2. AgroTechFarm - https://www.agrotechfarm.io/
What do you all think?