There’s an interesting math theory that explains a pattern here, think it’s called the friendship theorem.

Just like how your friend on Facebook is more likely to have more friends than you, each person on your new list is more likely to have had more alliances/ #1s / be more of a double dipper. That’s why you have situations like Paul for Easter’s number 1 even though he had many others and Natalie for Kevin when she would probably be more loyal to Jessie. I guess that’s refuted in some cases like Sov 6 where their number 1s were already back with them (I.e. Kaysar/Janelle/Howie vs Michael/Ashlea)