Like this guy says, it's not about being fake or original, it's more of a "fit for purpose" approach:
VgsOn/Ciss(gate capacity)/RdsOn/Weight
1 - The original disassembled from the unit: 3.xxv/3.xxuF/0.5R/1.98g
2 - 3.42v/1.53nF/0.43R/1.95g (Maybe fake but fits the purpose)
3- 3.46v/760pF/2.58R/1.92g (Completely fake, and a very bad fake too. 2.58 ohm RdsOn is way high)
4- 4.53v/744pF/1.08R/2.02g (Also fake, and a bad one with Rdson double of that on the datasheet)
5- 3.29v/2.93nF/0.43R/1.98g (The lowest VgsOn, the highest Ciss and among the lowest RdsOn, maybe original)
6- 3.54v/2.71nF/0.45R/1.97g (The second best I think)
Weight does not determine much here I think, the TO220 is already light enough, maybe weighing some TO-247 could show a difference.