I think you cant say that these 2 are the best composers this time. i think hans zimmer has a completely other style than in this chase elfman.You CANNOT campare them.
So you cant say what ve been better.Elfman would also be able to show you the artistic side of hannibal and so far.
Image John Williams had orchestrated this picture.I think this sountrack would also be a very great one.His diversity in his underscoring is just amazing , for example in Minority Report he showed us that he´s able to write more than amazing action hymnes and the other thematical stuff we know from him.