In the very early days of Bitcoin, ordinary computers verified and completed the proof of work needed to power the Bitcoin blockchain. However, the past several years have seen rapid development in the hardware used to mine Bitcoin.

Concurrent with the growing popularity of bitcoin, now there are also other digital currencies that are also rising, namely Ethereum. At present Ethereum sits as the second largest digital currency in the world. Even claimed its popularity is able to outperform Bitcoin for the past four months.

United States of America

At first bitcoin originated and developed in the United States. This is what makes the development of Bitcoin his country Uncle Sam far better when compared to other countries.

However, the use of bitcoin in the US is not too much, which is around 25%. This usage is mostly for online shopping payments. In fact, bitcoin can be used to pay for tuition and other bills.

I think it is very difficult for ethereum to overtake bitcoin, because I see the development of bitcoin is very good compared to ethereum, although ethereum is very good but this time ethereum is very plummeting

According to their website, Neo is a “non-profit community-based blockchain project that utilizes blockchain technology and digital identity to digitize assets, to automate the management of digital assets using smart contracts, and to realize a “smart economy” with a distributed network.”
Neo’s main aim is to be the distributed network for “smart economy”. As their website states:
Digital Assets + Digital Identity + Smart Contract = Smart Economy.

In the past twelve months, the NEO's development has been very rapid in the cryptocurrency industry. The NEO market capitalization seen at Coinmarketcap has now increased to billions of dollars. This is a very remarkable achievement for the NEO. Then what is NEO? Why can it grow rapidly?

RIPPLE and STELLAR is a network of real-time gross settlement system (RTGS), currency exchange and remittance. The Ripple Transaction Protocol (RTXP) or Ripple protocol and Stellar Protocol (SCP) protocols are built on Internet protocol and ledger consensus .

The native Ripple currency is called XRP. Ripple is supported by Ripple Labs company www.ripple.com

Currency Stellar is Lumens (XLM). Stellar is supported by the Stellar Development Foundation (SDF) nonprofit body www.stellar.org

Both of these networks provide tokens that represent fiat currency, crypto currency, commodity or other unit of value such as frequent flier miles or even mobile pulses. Ripple and Stellar are distributed to public databases or ledgers that use a consensus process that allows the payment, exchange and remittance processes to occur in the distributed process.

 which is still very complex and difficult to understand. ... money that is far better than Bitcoin, Litecoin, and Ripple . ... most hated in his community, in recent years ...

If you want to invest, invest in amounts that are "Nothing to Lose" . That is, if you have not been lucky, it doesn't really affect you economically and emotionally. And, if lucky, the amount may be very significant in the future.