No other coin is doing what Ethereum is trying to do. We don´t even know if it will be possible ever.
But if Vitalik succeeds Ethereum will be the next big thing. The first real Bitcoin competitor in case of adoption.
That's the issue, though. Ethereum hasn't done anything yet. Which is no different than any other IPO. It can make lofty promises, but whether it can deliver on them, and even if it could, if the market takes any interest in it, is another matter.
Right now that's two big IFs. This forum is always talking about the "next big thing", which almost always turns out not to be. I just think people need to be pragmatic. Put yourself in the shoes of someone even Ethereum. How would you hear about it? Would you use it? Would you understand it?
You've got to come at this from a position that we, the crypto community, understand crypto. Everyone else doesn't, and Ether is very much being sold on a basis that we understand. I can understand that as an investor, you're going to want to praise Ethereum and sell it as the next big thing, but don't get blinded by a group of investors telling each other the product is great, when non-investors might not agree. If you hear someone praising Ether highly, then they have an invested interest in it doing well, regardless.
Is an investor a reliable, unbiased opinion on Ethereum? Of course not. It's the non-holders you should pay attention to most, whether it be positive or negative.