95. Because people confuse rust going into the Final with being an underdog going into the Final.
Last 20 Stanley Cup Finals (days between last Conference Final game and 1st Stanley Cup game in brackets):
2018: VGK (8) vs. WSH (5) - WSH wins 4-1, VGK wins 1st game
2017: NSH (7) vs. PIT (4) - PIT wins 4-2, PIT wins 1st game
2016: SJS (5) vs. PIT (4) - PIT wins 4-2, PIT wins 1st game
2015: CHI (4) vs. TBL (5) - CHI wins 4-2, CHI wins 1st game
2014: LAK (3) vs. NYR (6) - LAK wins 4-1, LAK wins 1st game
2013: CHI (4) vs. BOS (5) - CHI wins 4-2, CHI wins 1st game
2012: LAK (8) vs. NJD (5) - LAK wins 4-2, LAK wins 1st game
2011: VAN (8) vs. BOS (5) - BOS wins 4-3, VAN wins 1st game
2010: CHI (6) vs. PHI (5) - CHI wins 4-2, CHI wins 1st game
2009: DET (3) vs. PIT (4) - PIT wins 4-3, DET wins 1st game
2008: DET (5) vs. PIT (6) - DET wins 4-2, DET wins 1st game
2007: ANA (6) vs. OTT (9) - ANA wins 4-1, ANA wins 1st game
2006: EDM (9) vs. CAR (4) - CAR wins 4-3, CAR wins 1st game
2004: CGY (6) vs. TBL (3) - TBL wins 4-3, CGY wins 1st game
2003: ANA (11) vs. NJD (4) - NJD wins 4-3, NJD wins 1st game
2002: DET (4) vs. CAR (7) - DET wins 4-1, CAR wins 1st game
2001: COL (5) vs. NJD (4) - COL wins 4-3, COL wins 1st game
2000: DAL (3) vs. NJD (4) - NJD wins 4-2, NJD wins 1st game
1999: DAL (4) vs. BUF (8) - DAL wins 4-2, BUF wins 1st game
1998: Det (4) vs. WSH (5) - DET wins 4-0, DET wins 1st game
- Outside of Vegas losing last year (debatable whether they were the true favorites), Vancouver was the only favorite in the last 20 years that lost when they had 3+ days of rest on their opponent. An opponent that I'm sure everyone here remembers.