The better is still Bitcoin Core. This is the wallet that offers the greatest security when it is used properly, so as long as you can, use it !

That is because if there was a legit solution that popped, there would be so many people flooding it that it would be full in a matter of hours. There is solutions but we simply do not see them.

As anything banned, such as drugs or alcohol during the Prohibition, the price will rise a lot, and that will attract criminals. Not However not very sure how criminals could conduct a Bitcoin traffic as they do with drugs, but there will be definitively an action from their side.

Happy new year to you too ! Regarding Bitcoin, this year will be magical, for both me and the Bitcoin community in general ! 2017 we're here !