This is a really difficult question to answer.
As far as psychology I will have to go with Triple H. I don't like the guy but he certainly beats Jericho in this respect.
Neither of them really have very beleivable offence.
But I'll go with Jericho becuase I feel he has the better selling and matches. Jericho, as it has been mentioned, has gotten decent matches out of limited workers. When comparing the workers both men have worked with I would say that Jericho has had the better matches. I know Triple H had his hot-streak in 2000 but since then his career has been patchy. Jericho has also had dodgy matches but certainly not on the scale of Triple H who took forever to get back into his groove following his injury in 2001.