Helle might have more regular season accomplishments at this point and more of a consistent career, but I take peak Price quite easily. Perhaps it is bias from all the times he owned the Leafs whereas the Leafs have often made Hellebuyck look fairly pedestrian, but Price on his game is truly exceptional and we saw how many times he carried very mid-level Habs squads that lacked star power. Montreal never had the level of firepower that the Jets have had during their peak era when Price was around. A guy like Ehlers alone would've been Montreal's best forward most years, then you add Connor, Scheifele, Wheeler before the decline, etc.
He was also pretty much perfect for Canada in 2014, of course the team up front made it easy, but even then you could see what he was capable of with an elite roster, which was basically perfection. Helle is yet to show that same level of resolve in crunch time situations, his career has been largely disappointing in meaningful games.
