Animal, Refugee, or Nomadic
Existing Monsters, Easily Homebrew-able Monsters, and Monsters Beyond My Imagination
How to list Monsters, 4e features, Incentivizing more Combat, and more
Pass/Fail, MegaCampaigns, Magic Item Costs, and more
Ability Scores, Classes, Spellcasting, and more
Everyone used to hate it, but now people have become nostalgic for it.