There is NO comparison between Swift and any others you have mentioned above.
Yes, she has written songs, and plays guitar (a Taylor, no less...) - good for her. So does Michelle Branch, who came out firing hot with her song "Everywhere" when she was 18 (a MUCH better song than ANYTHING TS has done)...anyone heard from MB lately ???
Bottom line is, with Madonna, Jagger, Springsteen, Townshend, et, al that you mentioned above, they had SOMETHING DIFFERENT that people realized very quickly. They were revolutionary. They changed music and made their mark...TS is a product of a HUGE marketing push by desperate record company folks who are DYING to get their next pop tart out there. And the fact that she's being pushed as a country artist is such a big joke that even Shania Twain has to be laughing...
Where is Shania