Taylor actually has the credibility that Britney hasn't, and will never achieve. At the age of 22, she already has won 102 awards, being nominated 188 times. She actually has creative input/control of her work which Britney never had. In a sea of Demi's,Selena's,Miley's who all had the Disney trampoline, Taylor has carved out her niche and is more succcesful than the other three will ever be.
Think of it like Christina,P!nk and Jessica Simpson.
Fearless is, in some respects, the blueprint for
19 and 21.