bitcoin because ethereum is now decreasing and bitcoin is now again rising in price but this is in my opinion because bitcoin is much interested

ETH is growing in utility but at the same time it will also grow in value.  Bitcoin is the same way because it is largely still the main gateway.  There are more BTC/ALT-Coin markets than any other market.  But that is changing.

Personally, I like them both but for obvious reason I buy more ETH than BTC (ETH is just cheaper). 

I'm not so sure bitcoin will soar to epic highs as many claim.  I think it's more likely that we see more volatile swings but as time goes on and legitimacy of crypto grows we will see less attention on bitcoin and a fairer distribution of market share towards other coins. 

For now, bitcoin maintains the tight grip on all the markets. 

I think that BTC will take the leading position as before, and ETH will take the second place

I still believe BTC is still number one in 2018. and I like both. I love BTC, and I love ETH as well

BTC is always my first choice. ETH is a nice option but i will not put all my crypto on ETH.
I am holding ETH and BTC so its the safiest way for me.
ETH support is around 350$ and btc support is around 6000$ i will buy from there again

I prefer ethereum this year. There are lots of ICO using smart contracts like ethereum so there is no doubt that ethereum price will rise this year. We can noticed the dedication of ethereum on its innovative way and development. I am not comparing about the price since bitcoin price gap is way far to ethereum what I am trying to compare is the percentage difference.

Bitcoin would be the leading coins above all, its hard to replace bitcoin because it was the first and very well known even for new people in this industry. Eth still have a long work to do.

Yes, even if it will soar to record prices, what changed that? you're not 100 coins, so pure to surprise yourself, well, then I will please you, because this year it will cost more than 20 000$

coin is superior now Bitcoin with good profit and many investors who invest in Bitcoin, and for now the market price is unstable causing price declines beberpa coin crypto of course Bitcoin also included, and since the market price is unstable slowly Ethereum started had a pretty good rise for now I think Ethereum could reach its peak in 2018.

If you read the comments in this thread from the beginning until the end, you will notice that posts from January were saying that Ethereum would be the best coin in 2018, now we have April and Ethereum isn't as popular as they thought it would be, so people post that Bitcoin will be better this year. This proves that this market is volatile and that this market can easily be manipulated by high profile investors.
I personally believe that Ethereum will rise in value, maybe not as high as Bitcoin but it will be much more popular in the end. At the same time, the behaviour of ETH will determine what will happen with ICOs too.