Ghost-Writer Zimmer
Sorry but we don't all agree Hans "Ghost Writer" Zimmer is one of the best in Hollywood.
His company Remote Control(or whatever name it goes by now) has composers on hand to ghost write some of Zimmer's work(it works both ways Zimmer also ghost writes for other composers he employs like Steve Jablonsky). Zimmer is also one of the worst offenders of self plagiarism by reusing his or his ghost writers previous work on other movies. The first, and most famous, example that comes to mind is that the Gladiator theme and the Pirates of the Caribbean theme sound identical. James Horner is another example of a composer reusing themes again and again. i understand Zimmers appeal and there are some really great compositions credited to him that are truly fantastic pieces but his career as a whole? Knowing the ghost writing that goes on compared to Howard Shore or John Williams(who compose every note themselves) I can't say Hans Zimmer belongs with the all time greats. I should note that many composers quote their own work from time to time(outside of sequels of course) but quoting is very different from overt recycling of major themes.