No doubt it would be "Jeopardy" because of:
1) the fresh game play and difficulty of the clues to come up with the questions.
2) a definitive play along factor here.
3) Art Fleming's hosting style---he was tops during the entire original NBC run.
As for the original "Price", it was beginning to run out of steam at the time, which is why NBC took it off its air and ABC received it, only to have it air another two years before going off. Yes, the original was fun, but the current CBS run still has plenty of life left in it with new pricing games coming each year.
