my hair gets hella greasy, hella fast. so shampoo > conditioner for me as well!
I've also got long hair, so I use a VERY tiny amount of conditioner on my scalp and just focus it on the lower half of my hair bc breakage.
I also wash my hair every day which I get screamed at for by many people LOL but I cannot stand how my scalp feels after a day of no washing. Working in a chip factory does me no favors on that part either, between sweating, seasoning floating around in the air, and chip oil. no thanks.