Note sure if I like world 1 the most, or world 4. Both great areas. World 4 is the greatest Soul farming ever, plus you can get revenge on Vanguard.
I really like the Castle setting of Boletaria in world 1. Overall I'd say that Demon's had better area's than Dark, Dark really doesn't have a world that really sticks out like 1 and 4. I mean my favorite area in Dark was probably Undead Asylum, the tutorial level...Painted world was pretty cool too.
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