1) better tower, better layout, vanguard together in one space, more vendors... also more public spaces. Iron Temple and Reef 2) blues can decrypt to legendary or exotic, motes of light or strange coins, legendaries can decrypt to exotics 3) rank up packages from Vanguard and factions let you choose your reward and were more rewarding. 4) Armsday weapon orders and field test weapons that led to quests for wespons like Tlaloc, Stillpiercer, Immobius etc 5) Infusion cost was reasonable (you could also infuse a Hunter Helmet unto a Warlock helmet etc) 6) vendor weapons from factions, Vanguard, and crucible https://youtu.be/DffcfbFhNf0 7) weapons had amazing detail and fit the theme of the raids better https://youtu.be/90uc9WWGOG0 8) armor was fantastic, especially after Age of Triumphs https://youtu.be/Tn_xulF29TE 9) raid armor and weapons had intrinsic perks that helped you during the raid, no mods required 10) better story telling (more story during game play) I dont want to read lore to get the story D1 provided. https://youtu.be/Uw1MtF6QqEQ 11) public events were fun and rewarding https://youtu.be/o3D6kZuo8x8 12) SRL https://youtu.be/7wPbqSDF24U 13) more / better pvp maps (how many are in D2 now?) https://youtu.be/SwNDLSNeeew 14) replayable campaign and story missions right from the directory (all of them) Weekly heroic story missions 15) favorite shader system https://youtu.be/83s2PMMhkdc 16) all old raids were revised and made relevant. New armor and ornaments to chase and Exotic Adept raid weapons. https://youtu.be/xwPXNXhEcaw 17) artifacts were introduced to help you customize your loadout, not to make you bounty grind to unlock mods and power level needed to play the DLC content. https://youtu.be/CGV9KLgxnPg 18) subclasses were way more customizable 19) you could pledge to a faction of your choice and receive rank up packages including sparrows, ships, ghosts, armor and weapons. 20) can't forget about Exotic Class Items. The class items increased reputation gains for the faction you pledged to, also since they were neutral you could still use you favorite exotic armor [u]and[/u] equip an exotic class item. https://youtu.be/ybiPes9byzE EDIT: if I am wrong then why has so much of D1 been ported into D2? These are my opinions and they are subjective. Feel free to chime in with your thoughts and discuss what you like better. D2 has plenty of advantages but I still like D1 better overall. [spoiler]Moderator edit: This thread has been updated with tags that are more appropriate. Feel free to private message the moderator who moved your post, link to topic, for further clarification about why this topic was moved.[/spoiler]