Man, I just finished a re-read of 'The Deathly Hallows' last week, and the ending still hits hard. After the Battle of Hogwarts, we see Harry using the Elder Wand to fix his own broken phoenix-feather wand before deciding to simply return the Elder Wand to Dumbledore's tomb, hoping its power will die with him. That always struck me as the most Harry decision ever—ultimate power offered on a platter, and he just... opts out. The epilogue, 'Nineteen Years Later,' is more divisive. We get a glimpse of Harry and Ginny, Ron and Hermione sending their kids off to Hogwarts. Harry tells his son Albus that being sorted into Slytherin wouldn't matter. It's a quiet, domestic close after so much war. Some fans find it too neat, but I think it's about the peace they fought for finally being ordinary.
I have mixed feelings about the final confrontation with Voldemort, though. Having it happen in the Great Hall with everyone watching was epic, but part of me wished for a more private, psychological duel. Still, Voldemort dying like a normal man—no grand disintegration—was perfect. His body is just a corpse, proving he wasn't special. That image stayed with me longer than any spell.