Capacitive buttons v. Hardware buttons v. On screen buttons

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I would like to get all y'all on XDA's opinions on buttons on your phone. My personal preference is on screen for their flexibility, customizability, and context-sensitivity. What do y'all think?

On Screen buttons are great on tablets and phones, it gives a clean look. But sometimes I accidently pressed the back button when typing which is kinda annoying and you have no choice but to press the lock screen to wake the screen. I prefer a physical home button and capacitive back keys (cuz you press a lot) for phones and On Screen buttons for tablet since orientation doesn't matter.