#2 Dean Ambrose

There have been certain points throughout the career of Dean Ambrose where he felt like a bonafide main eventer, but for whatever reason, WWE never seemed to capitalise at the right time.
When he eventually won the WWE Championship at Money in the Bank 2016, it was a fun moment and a great cash-in, but it didn't feel right.
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The proof of that came in the months that followed, with Ambrose's run as champion failing to catch fire.
For some reason the guy just seems like someone who should spend most of his time chasing the strap and to be honest, there's nothing wrong with that.
Maybe if he holds it as a heel we'll change our mind, but for now, we'll have to wait and see what he does after returning from injury.