Though the "Shazam" Captain Marvel was the originator of the name, had greater popularity, and outsold Superman, and Captain Mar-Vell was the victim of poor timing, market-niche finding, shark jumping, and many other forces arrayed against his success, the MArvel Comics Captain did go more places and had a more diverse and varied career than the Big Red Cheese.
The World's Mightiest Mortal deserved all the love that he got, and has really not found his market since he was acquired by DC Comics. But as a Protector of the universe, the Kree Captain was a wonderful character.