Suggestions by @samueldurham

Josh Brolin

as Cable in MCU X-men

Score: +1

Ryan Reynolds

as Deadpool in MCU X-men

Score: +4

Brendan Fraser

as Blob in MCU X-men

Score: -4

Ewan McGregor

as Multiple Man in MCU X-men

Score: +1

Joaquin Phoenix

as Multiple Man in MCU X-men

Score: -6

Ewan McGregor

as Angel in MCU X-men

Score: -5

Hayden Christensen

as Angel in MCU X-men

Score: -5

Joaquin Phoenix

as Sabertooth in MCU X-men

Score: -10

Keanu Reeves

as Gambit in MCU X-men

Score: -11

Hayden Christensen

as Iceman in MCU X-men

Score: -10

Michael B. Jordan

as Rogue in MCU X-men

Score: -23

Samuel L. Jackson

as Beast in MCU X-men

Score: -7

Stanley Tucci

as Storm in MCU X-men

Score: -18

Jared Leto

as Mystique in MCU X-men

Score: -12

Terry Crews

as Wolverine in MCU X-men

Score: -22