I think Ethereum will still be the best. Although Neo is a good altcoin and is trusted by many people, Etherum still outperforms the number of daily transactions. This shows that Etherum is much better than Neo.
I think you should compare ETH vs BTC is better. It's a question that makes a lot of people confused and really makes people fascinated. Although the ETH cost is 10 times more expensive than BTC, most of the altcoin used in ICO projects is ETH.
Of course it does when you have the volume of ICO's on it, ETH can handle 15 transactions per second compared to NEO's 1000/ps. Neo is planning to scale to 100,000 per second on chain and then has the likes of Trinity to increase that to millions with the use of off chain solutions. ETH wants to move to POS and has the promise of it's own version of sharding,but this is yet to happen. personally l am favoring NEO long term, they have partnered with some very good projects which will make there platform even better and will create more uses main stream.
Not sure how you can compare BTC and ETH when they are totally different platforms.