I got to play with an Arri Alexa for an afternoon. It's amazingly simple to use. As YouTube space alumni, we have access to their toys, which include the Red Epic, Sony F55, Canon C300, C100, XF305 and the Phantom Miro. I'm not a huge DSLR fan. Out of everything I've used recently, my favorite camera is the Sony NX30. It's small, easy to use, has best in class stabilization and xlr mic capability. We use a stripped down version of the NX cam for our channel that dumps the xlr mic to lower the cost. The Sony AX100 would be my second choice.