I can't speak for Geo and I don't hate Hagar but his entrance into VH really started my dislike for him. And oddly I was somewhat into some of his solo stuff but once he started shitting on Roth and their past music, no bueno.
Yeah I get it, Alex and Ed were pissed at Roth but Sam had no play in that game and yet he's bashing the guy in those early interviews along with Ed and Al. At best Hagar was a B level act, steps into what at that time was the biggest band in the world coming off two years of 1984 era and he's throwing attitude at the guy he replaced? That shit rubbed me the wrong way.
And he stills runs his yap to this day. There's never an interview with Sam where he doesn't remind you he was in Van Halen or he's got a bone to pick with Al or Dave. Then straight up lies about the record sales claiming VH was bigger with him than Roth, the sales numbers don't lie, Roth era sold way more yet there he is pushing his propaganda. And what does he care, he's richer than any of them from the sale of his tequila brand.
That said, I loved FUCK and like much of 5150 but for me, Sam's an easy guy to dislike.
As I've always said, Van Halen with Roth was the party, Van Halen with Hagar was just the band at the party. Van Halen with Roth was summer at the lake, the beach, chilling around the pool, some tasty waves and a cool buzz, cruising your Trans Am, drinking with your buds and trying/getting laid, Van Halen with Hagar was having her home by 10.