PoE is definitely a lot more complex, planning is a big part of making a character as well as a big part of the fun. The loot/crafting system makes everything a lot more exciting because regardless of what drops you have a use for it, the multiple different leagues also add a bit of spice to what could be a similar grind. Nemesis league offers a truly hardcore experience while Domination league offers some serious YOLOSWAG420BLAZEIT action. If you have any other questions feel free to reply and I'll answer as best i can! :D