Avengers:

1. Ultron (truly underrated)

2. Thanos (both versions)

3. Loki

Captain America:

1. Zemo

2. Pierce

3. Red Skull

4. Leader

Iron Man:

1. Obadiah Stane

2. Killian

3. Vanko

Thor

1. Hela

2. Gorr

3. Loki

4. Malekith

Guardians of The Galaxy: (only one where they’re all great)

1. Ego

2. Ronan

3. High Evolutionary

Ant-Man:

1. Yellowjacket

2. Ghost

3. Kang

Doctor Strange:

1. Scarlet Witch

2. Kacelious

Spider-Man:

1. Green Goblin

2. Mysterious

3. Vulture

Black Oanther:

1. Killmonger

2. Namor

Captain Marvel: (both extremely forgettable)

1. Yon-Rogg

2. Dar-Benn

I hope Doctor Doom is the best villain of all.

@Lmcarth Winter Soldier wasn't the main antagonist of Cap 2, Alexander Pierce was

Avengers:

Thanos

Loki

Ultron

Thanos (Endgame)

Captain America:

Pierce

Zemo

Red Skull

Leader

Iron Man

Vanko

Killian

Stein

Thor

Loki

Hela

Gorr

Malekith

Guardians of the Galaxy

High Evolutionary

Ego

Ronan

Ant-Man

Ghost

Kang

Yellowjacket

Black Panther

Killmonger

Namor

Doctor Strange

Darkhold Wanda

Kacelious

Spider-Man

Green Goblin

Vulture

Mysterio

Captain Marvel

Dar-Benn

Yon-Rogg

Okay here is how I rank

The Avengers

1. Thanos (Infinity War)

2. Loki

3. Thanos (Endgame)

4. Ultron

Captain America

1. Baron Zemo

2. Alexander Pierce

3. Red Skull

4. Leader

Iron Man

1. Obadiah Stane/Iron Monger

2. Aldrich Killian

3. Ivan Vanko

Thor

1. Loki

2. Hela

3. Gorr

4. Malekith

Guardians of the Galaxy

1. High Evolutionary

2. Ego

3. Ronan

Ant-Man

1. Kang

2. Ghost

3. Yellowjacket

Black Panther

1. Killmonger

2. Namor

Doctor Strange

1. Scarlet Witch

2. Kaecilius

Spider-Man

1. Green Goblin

2. Mysteiro

3. Vulture

Captain Marvel

1. Yon-Rogg

2. Dar-Benn

Iron Man:

1- Iron Monger

2- Aldrich Killian

3- Whiplash

Thor:

1- Hela

2- Loki

3- Gorr the Good Butcher

4- Malekith

Captain America:

1- Baron Zemo

2- Red Skull

3- Alexander Pierce

4- Leader

Avengers:

1- Thanos

2- Ultron

3- Loki

4- Warrior Thanos

Guardians of the Galaxy:

1- High Evolutionary

2- Ego

3- Ronan the Accuser

Ant-Man:

1- Ghost

2- Yellowjacket

3- Kang the Conqueror

Doctor Strange:

1- Scarlet Witch

2- Kaecilius

Spider-Man:

1- Green Goblin

2- Vulture

3- Mysterio

Black Panther:

1- Erik Killmonger

2- Namor

Captain Marvel:

1- Yon-Rogg

2- Dar-Benn