Hello, please help settle a friendly hangar argument about CTAF location announcement best practices surrounding IFR practice approach communications arriving at an uncontrolled airport?

1st pilot broadcasts on CTAF airplane location referencing distance & direction from IFR navaids (ex: at Arket inbound VOR 12 approach);
2nd pilot broadcasts on CTAF airplane locations referencing distance & direction from airport (ex: 5 mi west inbound Rwy12 low approach).

Airport & plate referenced is KLVN VOR 12.

I looked in the AIM for IFR vs. VFR CTAF lingo but was unable to locate best practice guidance. Thank you for your help.