I know nothing of MakerAPI version.. I've only used HubConnect.
MakerAPI is a 'smaller' install and is native/built-in.
HubConnect continues to target a multi hub environment. If you have a 2nd Hubitat or a SmartThings you're still using, HubConnect would be better.
In other words, let your total system needs dictate the product choice, not the specific App.