#1 The Undertaker
As much as it will always and forever be cool to see The Undertaker, the retirement and spectacle of WrestleMania 33 should have been the last we saw of 'The Deadman'. If the need for him to return was too great, the story could have been told that the 'Deadman' was retired, but 'Taker was still ready to go. American Badass or Big Evil Undertaker could have still performed just as well and continued the storyline of Undertaker's retirement for each of his personas.
Instead, fans were perhaps left feeling cheated as the past year's retirement and silence from 'Taker resulted in him appearing in the exact same manner as he always used to, and only appeared for mere minutes before disappearing again into the smoke. What could have been a WrestleMania moment with 'Taker riding to the ring on a bike with Kid Rock supporting, smashing John Cena and then leaving to the iconic bell tolls, actually left us with many questions and what if's.