I've read much of the earlier Arthurian literature. I enjoyed Mallory (15th C.), and recently read Tennyson's Idylls of the King.
I have not yet made it to White.
My favorite stories are Yvain, or the Knight with the Lion by Chretien Des Troyes(12th C.),
and the middle English Sir Gawain and the Green Knight.(I think 14th C.)