Definitely disagree on this one. First off, the other way, around, where are the comparables in De Palma's work to Taxi Driver, Raging Bull, The King of Comedy, New York, New York, The Wolf of Wall Street, and The Irishman. That's a game that can be played both ways. They are two very different directors with different interests--who cares about comparables anyway? Plus, your comment that he doesn't take chances is mind blowing. How many directors can claim such diversity and curiosity in their choice of risky projects. Some examples:
Alice Doesn't Live Here Anymore
The Last Temptation of Christ
The Age of Innocence
Kundun
Bringing Out the Dead
Hugo
Silence
Then there are his music documentaries, which are excellent:
George Harrison: Living in the Material World (maybe the best single music doc that I have ever seen)
Lightning in a Bottle
The Last Waltz
Then there are the straight docs, like Letter to Elia about Broadway theatre and movie director Elia Kazan and My Voyage to Italy which reflects Scorsese's love of Italian cinema.
In a way I am a funny one to be defending Scorsese as he is not among my favourite directors, but there has seldom been a director with an interest in such a wide range of topics. I find the often lurid De Palma much less intriguing. And I don't believe Scarface, Carlito's Way and The Untouchables can hold a candle to Mean Streets, Goodfellas, Casino, and The Irishman. I have no problem with anyone claiming that they prefer De Palma to Scorsese. Matters of taste are obviously going to vary. But if one has to tear down Scorsese to make a case for De Palma, that does a disservice to both directors.