Out of Heath Ledger in The Dark Knight, and Brandon Lee in The Crow; who gave the best performance?

HEATH LEDGER~~he locked himself up in a room and let NO ONE in while he was read each of his lines and was practicing his lines and with NO interuptions and became a lil "cuckoo" and made the PERFECT joker. hes THAT much of a great actor. im sooo sad he died ㅠ_ㅠhe gave a GREAT performance!!~~~