We all know that the Bitcoin currency is always on the top of all crypto coin no one can surpassed in term of potential, benifits and most profitable. even though the price of bitcoin is on the floor we know that it is only temporary.

And the second one was Etherium, the etherium is also profitable nowaday but i don't know if it is always profitable.

For now the best still held BTC in cryptocurrency, but BTC is very expensive, so for beginners better choose ETH, because it is cheaper and growth is good.

I think price is crucial. For an average and small investor, inexpensive crypto-currencies can offer the best swing for your dollar. I would advise a better ether than bitcoin or other cheap coins from the top 10.

I suggest you to consider Tron as investment option. It looks promising and it's low now.

After bitcoin, I'll go for ethereum. Ethereum surpassed $1300 recently and many thinks it has the potential to reach $10,000 in the future. It is one of the top blockchain platform today and within only a few years of its existence, it already broke some records including that of bitcoin. In the coming years, corporations and some major developers will start utilizing for everyday process and decentralized apps will soon release to the public. The technology industry and the tech giants are also adapting to ethereum.
The future demands for ethereum will sure grow dramatically in the future with these numerous developments.

It can't be say in a word i think. There are lots of currency in market but if you compair between BTC and ETH i think it may be ETH. Because ETH price is low from BTC and you can go for long investment with ETH.

There are now lot of potential coins at low price.If you can buy at this low price and hold them for few month, I think you can sell at higher price. here is the list of my favorite coins.
1.Eth
2.Waves
3.Dash
4.Cov
5.BDG

In my opinion (I am as well part of the signature campaign)  DIW Token will be one of the best ICO and best investment of 2018.

They have actually a working product with real use in real life. If you see the community adhesion currently, this going to be huge 

ANN thread of DIW : https://bt.irlbtc.com/view/2567416

Select the ethereum and store in a long time like one year or two years. in the year 2018, this is beginning to be successful to ethereum altcoin that is increasingly taken into account.