Clearly, Taylor trumps B in everything in the US. Examples:
Weeks at #1 on the Hot 100: Taylor wins; B's only spent 6 weeks (5 weeks solo) on top
Consistent album sales: Taylor wins; B declined there quickly after Oops
Better overall single sales: Taylor wins; B doesn't even have a 4x Plat song
#1 touring stat: Taylor's got 1 while B doesn't
Grammy wins: Taylor wins by a long shot; B doesn't have any popular Grammy wins
Etc, etc, etc.
Taylor was named Billboard's Female Artist Of The Year multiple times for a reason, while B could only own 1 year.