I do think it would've been better, yes. Although DB's mic work wasn't marvelous his promos are better than Cena burying his opponents and trying to be funny. Plus Bryan would actually look like an underdog.
It's just astounding. Brock beats the fucking Undertaker at Wrestlemania and feels like the underdog in the next match. :dawg:
I'll mess up your question and say that the individual matches are just as good as one another. With Bryan you have this heartfelt journey we went on with him really since 2010 that culminated at Wrestlemania and gave all of us fans the satisfaction we've been looking for before stalling in the background, then "Plan C" kicks in and Btyan has the biggest obstacle to overcome so far. You know the match - at worst - is gonna be as good as the Punk one and make Bryan an even bigger star even in defeat.
With Cena, you also know the match will be very good. We've seen it, even though it's going to be a different match than the first one. Now we have the added story of that bullshit that happened in 2012 and the fear that always comes with a Cena match, especially now that the title's on the line and "there's no way they put it on someone who works so few dates", and we're gonna be cheering our asses off for the Conqueror to seal the deal.
But there's 2 other things to consider:
-If it's Bryan vs Brock, then Bryan doesn't have a career threatening neck injury. Yay!
-Having a healthy Bryan would send a ripple effect down the rest of the card. Bryan as champ would free up John Cena to work with someone else, and with the way they've teased it there is a WHOLE lot of money in Cena vs Roman Reigns. Hate on Reigns all you want but there's a lot of intrigue there, much more so than some lame ass Reigns/Orton match.
So the final answer has to be Bryan.