These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Happened twice with "Why Baby Why," his first chart hit. It went to #4, but started falling when Red Sovine and Webb Pierce released a duet version that went to #1 and blunted the chart run of Jones' original. Charley Pride later had a #1 hit with his own 1983 rendition.
"Love Bug" is perhaps better known through George Strait's cover.
His version of "The Race Is On" is on pretty close footing: both his and Sawyer Brown's cover both seem equally recognized.
In a lesser example, his Shelby Lynne duet "If I Could Bottle This Up" was later a slightly higher-charting hit when releaed three years later by its writer, Paul Overstreet.
His 2001 single "50,000 Names" was first released by its writer, Jamie O'Hara.
"A Thousand Times a Day," a track from his High-Tech Redneck album, was later released in 1997 by Patty Loveless.
"A Good Year for the Roses" is better known as an Elvis Costello song.