Phone a Friend vs Plus One

This just popped into my head, seeing as though PAF and +1 are similar in one way or another, each having their unique concepts. PAF, of course, enables the player to call one of his or her friends, who provided their phone numbers to the show in advance, and give them 30 seconds to provide the correct answer. In later years, this was often prone to, as Meredith referred it, "Mr. Internet", as many Phone a Friends would look up the answer, which led to the removal of said lifeline late in the Clock format's lifespan. Plus One, which debuted during the final Shuffle season replacing one of the Jump the Questions, has a similar concept, except your friend is with you in studio, and they have an unlimited amount of time to discuss the question and come up with an answer. What I want to know from the consensus, is which one do you think is better, in your opinion, and why?