Realization is more important

The only difference is that the Vedic mantras are mostly
begun with pranava omkara, and it requires some training to 
practice the metric pronunciation of the Vedic mantras. But 
that does not mean that Srimad-Bhagavatam was of less 
importance than the Vedic mantras. On the other hand, it is 
the ripened fruit of all the Vedas, as stated before. 

Besides that, the most perfectly liberated soul, Srila Sukadeva Gosvami, is absorbed in the studies of the
Bhagavatam,  although He is already self-realized. Srila 
Suta Gosvaml is following his  footsteps, and therefore his 
position is not the  least less important because he was not 
expert in chanting  Vedic mantras with metric pronunciation, 
which depends more on practice than actual realization. 
Realization is more important than parrot-like chanting. - SB 
1.4.13