I agree with some of the altcoins in your list, but I also would want to change some. I agree with the first three, but for the last two I would change it to Monero and Stellar. I think the last two altcoins mentioned have shown better trend that would actually amount to an increase in value better than the one in the list. Also, another thing to consider is the kind of investment that you would do, if you're gunning for a short term investment, Ripple, LTC and Stellar would be the better choice, but for long term, Eth and Monero would be my vote.