What is the best coin among all POS/POS+POW at this moment? Or is it better to forget altcoins and invest solely in Bitcoin?
What are your aims?
My aim is to be successful in the cryptocurrency world. I wish I had invested at least 100 dollars in Bitcoins in ~2013, but there is a so called "if" in this case. Look at this chart: http://coinmarketcap.com/currencies/diamond/
It's so exciting to see that raise in the price. Also, it's both a POS and a very rare currency, which IMO means that it is going to be even more expensive. But I'm a complete "n00b" in tradings, as you guys can see. I've made a profit of around 4 dollars with just 17 dollars in a really short period (1 day, if I'm not mistaken) with peercoin, and another few dollars by investing in Bitcoins, but that's it.
for pos there is also nxt, with heavy instamine, but aside form this the coin is still doing well it seem
pow and pos hybrid does not seems a good combination, there are not good coin in that regard, unless we want to talk about coin that faced an early pow and then pure pow, which is a different story
i would aim principally at monero, dash and litecoin, and maybe you can add doge