#1. Charlotte Flair and Andrade

Charlotte Flair and Andrade are one of WWE's power couples. They went public last year and have been together even before that. Andrade is pegged to be one of WWE's future top stars, with many believing he's WWE's answer to what they've been seeking for a long time - a legitimate top Latino star who they can push to the top.
While they tried that with Alberto Del Rio, it didn't work, but Andrade's case is different and he doesn't seem to have any issues whatsoever backstage. He's on the same brand as Charlotte Flair, and while an alliance on-screen would never be out of the realm of possibility, it simply doesn't appear to be one that has too much weight to it or one that will benefit both Superstars.
They're both on a path of their own and while Charlotte has long since been established as a top star in the Women's division, Andrade's best years are to come. We expect them to constantly be on the same brand, but perhaps never together in an alliance.