Great choices, Chrono!
Just for my personal preferences as a need for another viewing, I'd love to pick the following ones any day for a Zombie Marathon...
1) REC
2) Day of the Dead
3) Let Sleeping Corpses Lie
Btw, I'd love to recommend
Harold's Going Stiff (2011) to everyone...after THE REVENANT this is one of the finest zombie flicks I've seen in recent times.