1) Radio buttonI really think the standard Template Option for radio groups should 'Display as Pill Button'
It really provides a simple and effective UX when a small set of options are on offer. Touch devices can select the option as if it's a button, and mouse users only need one click, compared to a select list requiring two. And the click doesn't need to be precise for those tiny radio group circles. I wish the application builder adopted the pill button approach more often.
And it's real easy to hook a dynamic action on change of the radio group, perhaps to refresh a classic report with data limited to the selected option. (Don't forget to add page items to submit!)
The Switch item was the answer to a number of methods of deploying an "iPhone-like" on/off switch.
I actually wrote an (internal) item plugin to do just this, but I much prefer using the native option.
A frequent question relates to how switches are rendered. If you don't see what you expect, have a look in Shared Components -> Component Settings.
Personally I prefer the 'Pill Button' look, for reasons above. I find the APEX Application Builder seems more washed out with all the Switches in the properties bar, compared to the more softened On/Off pill buttons. If I could change this at the builder level, I would.
The offerings will vary depending on your APEX version, and if the application's Universal Theme has been refreshed.
Application level settings for plugins can also be found in Component Settings, in addition to built-in APEX feature tweaks. These can something you choose to review after an APEX version upgrade.
3) CheckboxIt seems the humble HTML checkbox will always be extant, regardless of the pain it brings to tabuler forms. However, it suffers the same precision requirement as the native radio group selections - though better deployments allow selection using the label as well.
Go with the Switch (as a pill).
What do you think?