Taylor could have PERFORMED that song. The problem with Elliot is that he can sing, but he cannot connect with the audience the way Taylor can. Taylor could have made that song bigger than life. And yes, with something that technically complex. If you listen closely, Taylor does not miss notes often. He is rarely "pitchy". He would not have carbon-copied Freddy Mercury, but he could have made it his own.
The stuff Taylor sings is technically simpler than what Elliott sings. Taylor seems to impress people with his spazzy retarded over the hill white guy rocker act but he simply does not stray far outside of any vocal range so I guess it is easy not to miss when the bar isn't set that high.