Top 3 Roles?
The Revenant
Once Upon a Time in Hollywood
The Wolf of Wall Street
Titanic - not his best movie or bet performance,but this role give him World Wide popularity.
The Departed - this was like birth of Leo 2.0 because he proved he can play tough guy and that he is world class actor not overrated.
The Wold from Wall Street - I think it's his best ever performance in leading role. Too bad he didn't won Oscar for it,but it's not that bad since McConaughey was excellent in Dallas BC. Apsolute tour de force performance from start to finish.
----------------------------------------------------------------------------------------------
That were top his top 3 most significent roles.
His best acting performance was Arnie Grape His most underrated performance is Frank Abagnale Jr.