Hmm very true, I imagine a Howard would be in play also
He's got the Howards behind him because of Mary and their children. He doesn't need them. Although, maybe, if Henry knows the Dudleys want links to the throne, maybe he'll offer them Elizabeth for Guilford instead of his marrying Jane Grey so that they won't support the Greys over him... Elizabeth/Guilford could be an interesting match, especially given her OTL relationship with Robert...