Here's my input and I just purchased a complete 308 set FL/NS/Seater.
I get my dies peacemeal, that is, I like the RCBS Competition/Match grade bullet seater for a couple reasons, mainly because bullet insertion is in the front, through a machined window, You drop it in, not push it up underneath. I like that, always have, in fact, every caliber that I can get the front load seater, I get. I don't like putting the projectile in the bottom of the die, I want to see it physically and I want to see it get seated. The front load seater does just that.
I also like the RCBS bullet seater micrometer head. It has just enough tension to remain in a fixed position plus you can set it in 0.001 increments or halve the hash marks for a 0.0001 depth, not that, that would ever be necessary because contrary to opinion, multiple component tolerances in brass and projectiles (unless custom built) will never be better than 0.001 and probably much less.
I'm not a fan of RCBS non-bushing dies so I get Redding FL and NS dies. Add them to the RCBS Bullet seater in the RCBS box.
All your suppliers, Midway, Natchez, Sinclair, Graf's, sell seperate dies.
I'd buy the bullet seater and possibly the FL die and get a bushing NS fro Redding. FL resize is not as common as NS on bottleneck cases. I tend to only FL resize (Lapua excluded) only if switching chambers/rifles. Be sure to gage your brass for elongation and trim accordingly......
Having said that, RCBS offers bushing dies but I've never used them.
I use Lee for all my straight walled pistol cartridges BTW.