While both can be used for fundraising, they still have significant differences. Fundraising on Ethereum is more decentralized, while fundraising on the Binance platform is no doubt purely centralized. I'm pretty sure some people still prefer the former than the latter.
Along with that, take note that ICOs isn't the only thing that Ethereum is trying to do.
From that position, I do agree that decentralized system still working for ETH fundraising as you don't need to provide personal information just to acquire investment even you'll going to invest higher amount of money from the project that you are going to support, and yes there's also working product that eth is trying to provide aside from catering new ICO's tokens.
Can't say that binance can be called as ETH of 2017, they've got different approaches and different supporters.
Indeed, bnb still have to gain such reputations as what eth had for the past years. Their supporters have different outlook towards how it could create a better future on their community. However, considering the fact that it really soar higher it doesn't mean it will surpassed eth valuable price. Although BNB's demand continued to rise, I don't think it will work the same as eth legacy because it cannot overtake what's with ethereum transaction specially on different token contracts that supports the entire community.