Sometimes I make a small game of imagining actors in roles for the vast history of Middle-Earth. To that end, if I were to make a Tolkien-esque comparison for Branagh I would venture that he is the embodiment of Feanor. His passion for Shakespeare is akin to Feanor's love of smithmaking and he has bravado on the level of Feanor as I could easily see him laughing at Mandos.
Outstanding actor and truly a giant of our time. Who else these days could be said to embody, "...the vitality of Olivier, the passion of Gielgud, the assurance of Guinness" ?
In my view there is none but Branagh.