The highest a halen album ever reached with dimond dave was #2 on the charts. all four with sammy hit number 1.
Too bad the listeners didn't or care enough to buy them. David wins. Also the top charts, especially back in the day, was a measure of radio play primarily. Watered down Van Hagar certainly had more radio friendly songs, a sign, not of being better, but of watered down sugar syrup fit for the most droll, regulated and bland media, but by no means an indicator of "better", at best more generic.
Don't hurt your toe when the mic you dropped lands on it.