Not that it matters, I'm not offended or anything, and I do think Bobrovsky was the better goalie through 3 rounds but it wasn't a "lesser extent" for Hill after the Finals, plus the scope of your question works better for Hill since Bobrovsky was a former Vezina winner and Hill was a nobody back up on San Jose who didn't even become the de facto starter in Vegas until goalie injuries called on him to be one. Not that the question called for who came out of nowhere, but I don't know how you can say Hill's run was to a lesser extent.
Bobrovsky full playoffs: 91.5 Sv% 2.78 GAA 7.2 GSAA
Hill full playoffs: 93.2 Sv% 2.17 GAA 13.7 GSAA
This year I couldn't say. Maybe Demko