both are fair investments mid-term but definitely not long-term. However, if we're talking about mid-term profits then neither ETH nor LTC is the best option out there. ETH is already overvalued and does not have a potential to surge x10 any more. LTC doesn't even have any fundamentals backing up its price.

I would want to recommend WAVES but it too has a very big market cap already, so even though the tech is great and they're gaining momentum you won't be able to x100 your investment in WAVES.

The only coin I am aware of that still has the potential to x100 in value this year is Byteball. It has true innovation backing it up and it could potentially dethrone Ethereum, Monero, Dash and ZCash because its superior to them in all aspects. It has better anonymity and more user-friendly smart contract creation. It also has unlimited scaling because it doesn't have a block chain, so it can truly outperform VISA.

The company where I used to work half a year ago got downsized so I got a huge amount of fiat as compensation. I instantly bought into Byteball with all of that money because I am absolutely certain that Byteball is going to be a huge success.