My 最喜爱的 Bellatrix moment is probably order of the phoenix when she first comes in all "he knows 锄, 锄头 to play itty bitty baby Potter!" that was pretty awesome XD o
Funnily enough i don't have a specific 最喜爱的 part but i 爱情 the end of Deathly Hallows when the trio is just standing in the sunlight after the battle before the epilogue it to me it was perfect. Also the epilogue itself.