If there was a WCW right now, he would shine there and return to upper card WWE, and WIN MATCHES. He wouldn't win every one, but he has to only have 2-3 wins over the entire 2014. He is 100% what Scott Hall talked about when he mentioned his time in WWE, where he was told he sold too well and would end up jobbing for it. The only difference is he is 6-4 and the perfect size for Vince.Sub-par mic skills, not much of a character (being a "Showoff" isn't that interesting of a persona), etc. To me, he's the perfect midcarder. He can get pops (not Daniel Bryan pops, but good reactions nonetheless) and can definitely deliver in the ring, but he isn't the most charismatic guy in the company and his best assets aren't strong enough to make me want to see him get pushed straight to the top. It's not like midcarders don't play a integral role in the company, so I don't see the shame in Ziggler remaining in the undercard.
DZ is this generations Y2J, a guy that could be given his own gimmick and could run so much further than the WWE machine has done for him. I am not a DZ mark anywhere near as much as Ryder (who I believe is the right size for a push over ADR Swag and many others) but DZ is someone you could put against anyone. He couldn't get boo'd if he pissed on a statue of jesus on the cross from a forklift being controlled by a fake hitler.