Comes down to personal choice I suppose, and what your intended uses of the 308 will be.
FWIW, I have had a bunch of Burris 2-7 scopes, and all of mine have standard plex. I consider this scope model a hunting scope for game (mostly medium/big), but have also used them for shooting IHMSA. My scopes that have plex dots are all higher magnification and used for long range varmint/predator hunting.