Tekkit classic when
Enigmatica expert is meh just another grindy modpack.
Dungeons and dragons truly is the peak of minecraft modding haha, would be a fun modpack has some decent gameplay but you probably would need to keep wipin the server every half a month or so.
All the mods 3 probably will end up giving everyone an ethereal lag experience we already have with all the skyfactory servers, tekkit and inf evolved.
Project Oz is quite a fun modpack but also will most likely end up giving everyone an ethereal lag experience that sends you to the 4th dimension and back every second or so.
Texkit 3 is still in beta as far as i know and well why bother we already got tekkit