I'd rather Punk have been the one to take the streak... The idea of (1) his actions thanks to social media, (2) his "questionable" decision making at times, and (3) the unsure nature of just how long he will remain in the WWE makes me uneasy about Punk going over Taker. It's a Risk/Reward for it, but I honestly see more Risk involved with Punk than Reward at this point. That being said, if Punk was to turn out like a Taker/Jericho who was has remained loyal to the WWE for that time, then the Reward would be justified.
And Denny - That "uncertain" nature as to who would win against Cena/Taker would sell out Mania alone... People would literally buy into the idea of Taker's streak being gone more than they have in the past 20 years.