I saw other people post about Brian vs. Plush - I don't believe they're friends, but AFAIK they don't dislike each other. Joubert's stated position is that Plushenko is very annoying in press conferences but really nice behind the scenes. Which I believe is a good thing.
Height: Alban Preaubert is 6', though his bad posture makes it difficult to tell... According to their official bios, Tomas is 5'11 and Brian is 5'10 and a half (1.79m).