IMO, Both Eras were pretty sucessful, but if we are goin' to see the USA Side, The Goodies era Was More Sucessful than GGGB Era, Ciara Got Great Album Sales and Great Single Sales, Of Course Rihanna Get It Too, But Ciara was way Bigger in the USA than Rihanna.
If we Look for the WW Side, of course that GGGB era was Bigger
And It's hard to some Rihanna Stans to discuss things without Start a Stan War?