I'm talking about the 186 points in 164 games. No active player is even close. Malkin is the only other one above 1 ppg.
Can we dispense with this whole Crosby/Malkin are ridiculous playoff performers above and beyond their normal production? Their numbers are a product of opportunity and goalie randomness, and are in line with other top playoff performers. If you break down their production by series, comparing both Crosby and Malkin to Ovechkin and Kane, you start to see how and where their point and PPG advantage occurs.
Start with the Stanley Cup Final, where Malkin and Crosby have 25 games, while Kane has 18 and Ovechkin 5 - Malkin is 8+10=18, Crosby 4+16=20, Kane 7+9=16, Ovechkin 3+2=5. Apart from Ovechkin's tiny sample size, there's nothing wrong with those numbers. Move onto the Conference Final, where Crosby and Malkin have 27 games, while Kane has 28 and Ovechkin 7 - Malkin 12+14=26, Crosby 10+15=25, Kane 10+19=29, Ovechkin 4+3=7. Again, no outliers, generally expected production. Now we can look at the 2nd round, where Malkin has 48 games, Crosby 49, Kane 29 and Ovechkin 44 - Malkin is 17+27=44, Crosby 19+31=50, Kane 19+11=30, Ovechkin 23+22=45. Steady production from everybody, still nothing unexpected. Through 3 rounds, Malkin has 100 games, 37+51=88 points, Crosby 101 games, 33+62=95 points, Kane 75 games, 36+39=75 points, Ovechkin 56 games, 30+27=57 points. No outlier scorers, the Crosby/Malkin advantage in points is entirely due to more games played (which is a good thing - both Crosby and Malkin have been good in the playoffs so the Penguins have gotten to play more games deeper in the playoffs).
Finally, we arrive at the 1st round, where the differences occur. Malkin has 62 games, Crosby 63, Kane 52, and Ovechkin 65 - Malkin is 26+54=80, Crosby 33+58=91, Kane 14+34=48, and Ovechkin 31+29=60. This part doesn't apply to Kane, because of Western Conference, but Pittsburgh/Washington have a few overlapping goalie matchups, and a few unique goalie matchups. Now this part is a bit tricky, because you're not always comparing same year to same year, but generally speaking Washington has tended to finish ahead of Pittsburgh in the standings, and yet due to randomness, Pittsburgh has faced an easier slate of goaltenders. Working from earliest to latest, Pittsburgh has faced Emery, Gerber, Biron, Leclaire/Elliott, [Roloson], Bryzgalov/Bobrovsky, Nabokov, Bobrovsky, Lundqvist, Lundqvist, Bobrovsky, Elliott/Neuvirth, Lehner. By comparison, Washington's slate of goaltenders faced is Biron, Lundqvist, Halak/Price, Lundqvist, Thomas, Lundqvist, Halak, Mason/Neuvirth, Andersen, Bobrovsky, Mrazek. [Pittsburgh faced Roloson in the 1st round, but neither Crosby nor Malkin played in that series, so we can basically ignore it for the purposes of this analysis. There are 10 other common years where both Pittsburgh and Washington made the playoffs, Pittsburgh finishing ahead 3 years, and Washington 7 years. In the 3 years Pittsburgh finished ahead, they received the easier goalie matchup (by career save percentage), while in the 7 years Washington finished ahead, Pittsburgh received the easier matchup 3 years to Washington's 4.]
If you break out common goalies faced, each team has faced Lundqvist twice, Biron once, and Bobrovsky once. I chose to use Ovechkin's two lowest point totals of the three times he's faced Lundqvist (2, 6 and 7 points, I used 2 and 6 for common matchups), while the same for Crosby/Malkin in their Bobrovsky appearances (7, 11 for Malkin, 6, 7 for Crosby, I used 7 and 6 for common matchups). That leaves you with 22 games for Crosby and Malkin, 9+14=23 for Malkin, 9+17=26 for Crosby, and 25 games for Ovechkin, 13+12=25.
That leaves the unique goalie matchups, where Malkin and Crosby have 41 games, while Ovechkin has 47 games - Malkin is 17+40=57, Crosby is 24+41=65, while Ovechkin is 22+22=44. This is where you have the massive advantage for Malkin and Crosby in both points and PPG, and when you look at the remaining goalies, you can see why. Ovechkin's remaining goalie matchups are Halak twice (.916 career), Thomas (.920), Lundqvist (.918), Mason/Neuvirth (.911/.910), Andersen (.918), and Mrazek (.911). In comparison, Malkin/Crosby's remaining goalies are Emery (.906), Gerber (.911), Elliott/Leclaire (.912/.904), Bryzgalov (.912), Nabokov (.911), Bobrovsky (.919), Elliott/Neuvirth (.912/.910), and Lehner (.918).
Now my premise does rest on two slightly shaky foundations, both of which I acknowledge could be true. There's no reason that the Capitals should have an expectation to face an easier goalie matchup in the playoffs, despite them generally finishing ahead of the Penguins. There's also the opinion that the differences in unique goaltenders is marginal at best, and the performance of Crosby/Malkin compared to Ovechkin is much more than marginal.
Be that as it may, after typing up a version of this in previous threads, but not posting it, I hope in the future people can refer to this breakdown to understand to an extent why Crosby and Malkin have a gap in both points and PPG over everybody else in the playoffs in this era.