Mac window management

Trying to decide on Moom vs. Magnet vs. BetterSnapTool. I watched the Hands On Mac episode regarding mac window management, but still can’t decide. I’m mostly looking at these tools to cobble together three or four instances of Omnifocus into ‘one’ view that gives me the big view of all of my tasks at once. Any thoughts?

Also, do any of these tools allow you to lock three or four windows together to create a one ‘paned’ type of view of multiple windows?