Brock Lesnar vs. Triple H or The Undertaker at WrestleMania 29?

The last that WWE fans saw of Brock Lesnar was his appearance weeks ago on the Raw following SummerSlam, where his rep Paul Heyman declared him ruler of the WWE Universe.  During that same night, Lesnar made a Tout video to say he was done with WWE.  However, it appears he is still in the "pipeline" so to speak, for upcoming plans, or is he?

A report at WrestlingInc.com says that Brock may very well resurface in the early part of 2013 leading up to WrestleMania 29.  What's not clear is who his opponent will be.  There's been talk of it being Triple H, but also talk of The Undertaker having the match.  Both make sense right now, although Taker may be the bigger draw for a Mania match.

Many fans may remember that Taker showed up at an MMA event and had that infamous crossing of paths with Lesnar when he was a part of the UFC.  That sent the world wide web into a frenzy with rumors the two would be meeting up in a match at WrestleMania.  However that never happened, and now with Lesnar back, yet gone again, Undertaker is nowhere to be found.

The two were both featured on Raw 1000, but in different segments.  The build-up for a Lesnar vs. Taker match is certainly there, as Lesnar can boast that he's defeated the best of the best in WWE and is the supreme ruler of all competition.  However, one man has an unprecedented undefeated streak at Mania; The Deadman.  Putting that accolade on the line against a guy of Lesnar's magnitude seems like a major challenge.

Will WWE go for this though?  There seems to be rumors that Triple H vs. Lesnar will go down at Mania, but the other match makes much more sense.  The other interesting thing will be to see if Paul Heyman continues to work with CM Punk and Lesnar leading up to Wrestlemania 29, if both have huge matches.

Which would you rather see at WM29: Brock vs. HHH or Brock vs Taker?