A lot of my favorites have already been named in this thread so I'll name some that haven't been named yet...
Mick Foley "Staind" Tribute - perfectly summed up Mick's best years
Eddie Guerrero "3 Doors Down - Here Without You" Tribute - to this day everytime I randomly hear this song I instantly think of Eddie
Austin vs Bret WM 13 Promo - Pretty much sums up how everyone for no reason turned their back on Bret and lead to the downfall of the "Hitman" character