I'm not sure what people see in the SFO Int'l RCC. The matrons who work there are quite possibly the meanest in the whole system, drink coupons are hard to get, and it's nightmarishly crowded. Yes, it has a good view, but that's about it.

The SQ lounge on the other hand has good food (and available ice cream!), free make-it-yourself drinks, the Swissport lady who works there is quite nice in my experience, a shower, and internet access (albeit often slow internet access). It also is virtually empty most of the time I'm there... I've never been denied access with my UA int'l ticket.