I like PPU (Prvi Partizan), it tends to be on the 'very hot/5.56' end. Brass is good. It has crimped primers, so keep that in mind.
S&B is good. Primer pockets can be tight (not much 'chamfer' or rad) but they aren't crimped.
PMC seems to go bang in .223 but I get an unacceptable amount of bad primers with their .50BMG ammo, so I don't buy it. It has crimped primers.
Remington UMC tends to be on the underpowered side but the brass is okay.
Winchester white box is what it is. The brass is decent. Not crimped.
I don't use MFC and/or Wolf (Russian). It's dirty and underpowered and steel cased so you can't (shouldn't) reload it.
IVI, LC, WC brass (Military) is good but you won't find much (any) in the way in loaded ammo. Primer pockets are crimped.