@maverik379 If I had to pick one, it would be EZ curl and angled bar pushdown. More often than not, that's my starting point.
But everything has a place, and if I have time I'll do 3, 4, 5 exercises for each or more. It's pretty much "what can help me get a really good squeeze or burn at this point in my workout?"
EZ, cables, dumbell, machines, preacher, concentration, reverse grip, hammer... everything is on the table. And on any given day there's a different ultimate. I see which one excites me in the moment, and that helps me push it harder.