There is no comparison between Van Halen and Van Hagar.
For pure vocal chops, hard to beat Sammy Hagar. He has a fantastic voice. But Rock and Roll ain’t opera. The chemistry (and conflict) between EVH and DLR made Van Halen way more interesting than Van Hagar.
What.... You don’t like “Bop... bozdee, bozdee, bop... ziddy bop?” Nobody cares for me! Nobody! :-(
...or...
“Ain’t talkin’ ‘bout love. My love is rotten to the core.”