When comparing Slate vs AROW, the Slant community recommends Slate for most people. In the question“What is the best window manager for Mac?” Slate is ranked 3rd while AROW is ranked 17th. The most important reason people chose Slate is:
Ranked in these QuestionsQuestion Ranking
Pro Extremely configurable
Pro Based on hotkeys
Hotkeys can be set to re-size and focus windows, as well as activate layout presets.
Pro Lets you set default layouts
By using a feature called "snapshots", users can set up different default window layouts in Slate that they can switch to and from on the fly.
Pro It's free
Slate is completely free to download and use, which is a great option in a field of Mac WMs that often costs money to use.
Pro Window hints
Slate offers window hints which are an intuitive way to change window focus.
Pro Allows for tiling
Slate allows for customizing the config file in order to emulate tiling windows.
Pro Support for multiple monitors
If you use external monitors, the app is useful. It also supports retina screen without problems.
Pro Customizable options
You can customize the app in Option, for example, where you can change the appearance of the preview outline, adjust the width of the recognition areas, and set keyboard hotkeys for quick window snapping.
Pro Define OS X window buttons
AROW enables you to change the actions of OS X’s window buttons. It only requires either a right or a left-click for the action to take place.
Pro Smart Panel to move and resize windows
The customizable grid panel is very intuitive and is an accurate way to resize and move windows. Simply drag your mouse across its grid, the window will be moved, and resize to the exact position instantly.
Pro Easy ways to snap windows
Simply drag windows to the edges of your Mac’s screen. Once the cursor reaches the screen’s edge, the window will automatically move and resize to fill exactly half or quarter of the screen.
Con Project maintainance is on pause
The developer is currently taking a pause to focus on other things as of December 2015.
Con Hard to configure
There's no graphical user interface for configuring Slate, meaning it has to be done from the command line interface or by editing a config file. This makes it somewhat difficult and time-consuming.