1968, Reused a ton of photos, ugly-ass burlap bag designs, many capless mug shots, no action images, just a zero inspiration set. About the only good thing was the All Star subset but those stupid puzzle backs wrecked that.
1968 edged out 1979 for me only because 1979 has some nice looking action cards in it., e.g., Rose, Morgan, Garvey, Guidry, Rice, Stargell, etc.
I like the 1958
design way more than 1968 or 1979. Team logos always are a bonus for me. Wasn't well executed but there are some decent cards in there, like Spahn, Ashburn, etc.