*raises hand* David Tennant is right, his name is "The Doctor", but it's not wrong to call him "Doctor Who". Doctors One through Nine are called "DOCTOR WHO" in the credits! In fact, other former Doctors refer to him as "Doctor Who".
The Doctor: Hold on, hold on, hold on, hold on. before dying. Do you know what happens if you hold two identical sonic devices against each other? Miss Foster: No. The Doctor: Nor me. Let's find out! also y u can't give me nice things