Britney was braver and more creative. Christina was so lazy... the Spanish album was unnecessary, she could just had a Latin American version of the debut, that was more sensible. That made her lose almost 2 years for Stripped.
What was braver?
Wasn't her Spanish album basically a Latin version of her debut? It had all her hits in Spanish. The non singles on her debut aren't great songs anyway And plus she needed some "real" Latin songs too to appeal to that market.