I just read a Points Guy article that Amex Platinum holders can access the Virgin Atlantic Clubhouses and there is one in EWR in Terminal B. Although it doesn't open until 3 pm, would this be a comparable experience to the Polaris lounge in C without having to go back and forth between B and C? The article mentions how nice these lounges are.
https://thepointsguy.com/news/virgin...amex-platinum/