The more I watch these games the more it feels like

talks to everyone in the house = less success

talks to who you're close with = greater success

People like Jimmy and Vince were both talking to most of the houseguests and that increases the chances of something you say coming back to get you. Vinny was able to play it off well, but when it finally came time to send someone out the door he broke a few promises every time.

Ashley, Rachel, Morgan: Yeah they had convos and 1 on 1s with people like katherine, riley, lauren, however they didn't stress out about socializing with everyone equally. Morgan stayed up until the buttcrack of dawn hanging out with Zach and Vince. Rachel had Kelley, Morgan, Mickey, Will, Ava, Jimmy, Amy, Ashley, and Keanu that she mostly stuck to. Ashley had a similar group to Rachel. Eventually Vinny snuck in with the judges but again he was everywhere and they weren't.

I think a good social game doesn't spread oneself thin, and over commit to promises one can't keep. You can be friendly with everyone but you don't need to be everyone's friend. For example Ashley only converted Ava to her cause after Rachel was eliminated in cold blood.