Arba Avos? What do you mean Arba Avos? There were only three?! Avraham, Yiztchak and Yaakov!!!
At least you’re thinking outside the box.
Okay, bekius vs. havanah.
Obviously, some degree of each is required, each complements the other, and neither is complete without the other.
The various mesoros differ as to where the focus should be, but not whether or not they’re both important. There are also different mesoros as to what is considered proper havanah and how to achieve proper havanah.