A thread about hero mantles originally taken on by one character, but were later taken on by other characters, whether they be relatives, associates, alternate-universe counterparts, and so on, and whether you think DC or Marvel has handled and written them better, and why.
Examples of the sorts of hero mantles I’m referring to can include:
DC:
Aqualad: Garth -> Jackson Hyde
The Atom: Al Pratt -> Ryan Choi
Batgirl: Barbara Gordon -> Cassandra Cain
Batman: Bruce Wayne -> Terry McGinnis
Crimson Avenger: Lee Travis -> Jill Carlyle
Doctor Fate: Kent Nelson -> Khalid Nassour
Doctor Mid-Nite: Charles McNider -> Beth Chapel
The Flash: Jay Garrick -> Bart Allen
Green Arrow: Oliver Queen -> Connor Hawke
Green Lantern: Alan Scott -> Jessica Cruz
Hawk and Dove: Hank Hall and Don Hall -> Holly Granger and Dawn Granger
Hourman: Rex Tyler -> Rick Tyler
Manhunter: Paul Kirk -> Kate Spencer
Mister Terrific: Terry Sloane -> Michael Holt
Robin: Dick Grayson -> Damian Wayne
Speedy: Roy Harper -> Mia Dearden
Starman: Ted Knight -> Jack Knight
Superboy: Clark Kent -> Jonathan Kent
Wildcat: Ted Grant -> Yolanda Montez
Wonder Girl: Donna Troy -> Cassie Sandsmark
Marvel:
Ant-Man: Hank Pym -> Eric O’Grady
Black Widow: Claire Voyant -> Natasha Romanoff
Captain America: Steve Rogers -> Sam Wilson
Captain Marvel: Walter Lawson -> Carol Danvers
Falcon: Sam Wilson -> Joaquin Torres
Ghost Rider: Carter Slade -> Robbie Reyes
Hawkeye: Clint Barton -> Kate Bishop
The Hulk: Bruce Banner -> Amadeus Cho
The Human Torch: Jim Hammond -> Johnny Storm
Iron Man: Tony Stark -> James Rhodes
Miss America: Madeline Joyce -> America Chavez
Ms. Marvel: Carol Danvers -> Kamala Khan
Nova: Richard Rider -> Sam Alexander
Power Man: Luke Cage -> Victor Alvarez
Spider-Man: Peter Parker -> Miles Morales
Spider-Woman: Jessica Drew -> Gwen Stacy
Sun Girl: Mary Mitchell -> Selah Burke
Thor: Thor Odinson -> Jane Foster
Wasp: Janet van Dyne -> Nadia van Dyne
Wolverine: James Howlett -> Laura Kinney