Sportsbook: has to be Cloudbet.. They offer the best welcome bonus for new customers I could find on the internet. Up to a maximum of 5 Bitcoin. Additionally, they recently started live streaming sports events if you have something like 0.0001 Bitcoin in your account.
Casino: my favorite is FortuneJack. I love their look & feel and they offer a ton of casino games as well as multiple cryptocurrencies.
I also interested into casino because I have little interest on that and learning is also very important for that and making money is more easier when you have the right way of approach so I choose casino.