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This is a very complex question, and it’s next to impossible to give a definite answer. The reason being all of these have their pros and cons and virtually no one can give you more than a speculation. Here are the main points about all of these currencies:

Bitcoin - even though it’s not the very first currency out there, it certainly is the most popular and successful as of now. The market cap is way above all the other ones. It is often referenced to as digital gold, sort of an asset that gained enough momentum that it will remain valuable for time to come.

Having said that, this does mean that the network is overloaded leading to major delays in transfers, it has many major governments trying to regulate (and often limit) its use, it became next to impossible to mine and the price of coins as well as the transaction fees are way up there, so much so that it hardly makes sense to invest if you don’t have rather hefty amounts to throw at it.

Ether - Made using Ethereum, this currency has seen more than impressive growth. As of the beginning of 2018 it successfully surpassed 4 digits USD value for a single coin. The main advantage is the use of Ethereum on the backend, which is now used by many others to build blockchain based decentralized applications. It is way easier to understand and learn than the code behind bitcoin. For this reason, Ethereum has relevancy like no other and is being used by many institutions for all sorts of things.

However, since the code is very young and decentralized, it is prone to bugs that can be pretty detrimental when they occur on big transactions. Also, the main thing that gives Ether the advantage that it currently has, which is the fact that it’s build on Ethereum, might be taken away from it if another, even more user friendly platforms occurs.

Litecoin - It was made with the idea of it being a better, faster version of Bitcoin. It introduced features like SegWit and lightening network, which were supposed to make the transactions faster and cheaper.

SegWit has been introduced to bitcoin blockchain as well, so the gap between the two has become somewhat smaller. Litecoin doesn’t really suggest any new ideas (like most altcoins), but rather refines the one that are essential to bitcoin.

Ripple - Ripple, on the other hand, does introduce a significant change. It is used for fast money transactions and as such has a lot of appeal to major financial institutions. This is something that makes it somewhat more stable and less prone to fluctuations.

It is not a cryptocoin in a traditional sense since it is mostly used to back the money transfers. Also it is way less decentralized since the company that made it owns over 60% of all coins.

Bitcoin is mother currency of all coins. So my first choice is bitcoin. After the bitcoin ethereum is second largest coin by market cap and one of the successful blockchain so ethereum is best option after bitcoin. And bitcoin is gold of internet so also litecoin is silver of internet. So yes litecoin is also best choice.

Now lets talk about ripple, it is centralized that's why i don't feel free to invest. Because we love this technology because its decentralized and transparent but in ripple case its a centralized. I'm not saying its bad project but i just shared my opinion why i don't like ripple.

So in my opinion all above coins are good for investment. And my top two choice is bitcoin and ethereum over a ripple and litecoin.

Well, no one can really know that. You just have to invest in the stuff you think will do well, and listening to strangers might not be the best idea if you got money to invest.

Of course the better coin will definitely be bitcoin,bitcoin no matter the challenges it is

facing will still remain the number one coin,now

the bitcoin is a coin that even determine the price

Of othe cryptos so that is an evidence that bitcoin is a very powerful and useful coin with so many

investors who invested on the bitcoin market,bitcoin trading could be very comfortable

if the bitcoin trader is well informed about the bitcoin business