The Most Popular Cryptocurrencies.

[Vx1]

Ethereum and Ripple are two very popular Altcoins, these two Coins are always fighting over the positions of two Coinmarketcap.  Litecoin also has very good potential, and it is true that Altcoin mentioned above has very good potential.

[Alter]

I think Bitcoin and Ethereum are the most popular crypto until now. There are no other coins as famous as the two coins. So far, Bitcoin and Ethereum are the most coins to buy by the people. That's why they have a big community and keep improving popularity and prices. 

[I-Bit]

Do you mean the most popular altcoins? If crypto, I am sure that BTC is the best and most popular coin. Amd for the altcoins, some of your lists, yes. Eth, BCH, XRP, probably you can consider XLM, BNB, and also Neo. Well, actually I only love BTC and ETH

[gotbounty]

I m sure that the most popular crypto is still BTC. Can you compare it with others? Nope. BTC cannot be compared or similar to the other coins.
However, there are also certain most popular altcoins as we can see on the top 10 coin market cap. For me personally, I will prefer to choose BTC and ETH

[Octoalts]

Bitcoin is the most popular Cryptocurrency, before people get to know other Crypto coins, people must know Bitcoin first. This is because Bitcoin is the Crypto coin that first appeared, and Bitcoin has become an Icon of Cryptocurrency. 
After Bitcoin, Ethereum is probably the most popular cryptocurrency, and this popularity of Ethereum happened at a time when several years ago the Ethereum platform was widely used as a growth for new Cryptocurrency projects.

[Istiak]

There is no doubt that this are the most popular crypto assets that are available in the market right now. There is still some other coin that is worth mentioning but I think Bitcoin and Ethereum are the topmost dependable crypto assets. Ripple is also doing good and I think it was in top 2 recently. But bitcoin can not be compared to any other.

[Cryptoz]

After the bitcoin, the best altcoin is only Eth. For others, I do not need to vote. BTC and ETH are two coins that are trusted, having more value and volume including has a great chance for even long term investment. Sure, BTC and ETH should be considered as the most popular.

[ShadowCrypto]

Top 30 most active Cryptocurrency subreddits in the past 30 days.
.   .   .
1. Bitcoin   11. Neo   21. Litecoin
2. Bitcoin Cash   12. Iota   22. Electroneum
3. Ethereum   13. Tron   23. Dash
4. Vechain   14. OmiseGo   24. Ark
5. Eos   15. Ethereum Clasic   25. Request Network
6. Ripple   16. Icon   26. Basic Attention Token
7. Nano   17. Cardano   27. Ontology
8. Monero   18. Lisk   28. Binance Coin
9. Stellar   19. Doge   29. Bytecoin
10. Kin   20. Waltonchain   30. Vertcoin
A huge part of a coin future success is how big and active the community behind them is. I end up finding this website: https://cryptosub.live/

[Confero]

Of course Ethereum is the most popular Cryptocurrency from the list mentioned above, but even though the most popular Ethereum is not Cryptocurrency that has the highest price, and BCH will still be the most expensive from the list above.

[carcas]

I consider Ethereum and Tether to be more popular and many people use or hold. Both of them are also often used for daily trading and it's easier to get profits. Besides ripple and BCH is also very good for if used for long-term investment

[sampoerna]

If we are talking about the most popular altcoins, I will prefer to the top 10 on coin market cap at least. Coins such as ETH, XRP, XLM, LTC, and others may have its popularity. But it doesn't mean that the coins will give us high pofits. It will always depend on how we trade or invest based on our analysis and decision.

[UNIVERSE]

BTC is the most popular crypto, while ETH is the most popular altcoins. Only these coins are the most trusted coins in crypto space. I think if someone wants to focus on investing, BTC and ETH are the best choices.

[debra]

Peesonally I will prefer to some top 5 coins. Eth is thw most that I will choose

[Master107]

Popularity helps to know the kind of coin.
Sometimes it is the most recommended coin.
The normal belief is to increase and for long term.
Stable core values with high standard and security.
Basically the higher ranking in coinmarketcap.
Potential and promising.
Dominate other coins.

[shadowdio]

well I agree that they are the most popular cryptos that you mentioned but bitcoin is really popular cryptos of all..