My Pk Ave originally had Gm side post connectors. The corrosion and connection was poor.
Used Marine terminals and added extra thicker ground wire. Top post connections still need to be checked when it gets cold out. They do loosen off, movement not good.
I use a mega powerful Odyssey AGM battery. No venting and don't have to worry about corrosion.
If you do have a lead acid battery/top post for 3 $ install some battery terminal washers. These felt washers reduce corrosion big time.