Re: What rematch would you rather see: Cena/Rock or Brock/HHH?
Rock/Cena was a better match but it was also the type of dream match that you can't duplicate the feel of the first one. It's the battle of the generations, you can't create the same buzz the second time. Rock/Cena was magic and created a rare reaction in the media and the fanbase. It should stay "Once in a Lifetime" because that's what it really was for this generation of the wrestling industry.
Lesnar/HHH on the other hand, can go into a series. I liked the first match and if the situation was different with Brock's schedule, I have no problem with another stipulation match. But in a way it is now with Lesnar wasting a rare WM match just so HHH can get a scripted victory over him is just ridiculous and should never happen. The result is not even the main issue, if there was a legit reason to do it again? Fine, but there's not a reason.
In the current situation, both matches have no reason to happen again. Each for his own case. Rock/Brock and Taker/Cena is the obvious and the logical way.