Suggestions by @batmack2

Rumble

as Avalanche in Transformers as Marvel Characters

Score: +1

Firestar (Transformers)

as FireStar in Transformers as Marvel Characters

Score: +1

Blurr (Transformers)

as QuickSilver in Transformers as Marvel Characters

Score: +1

Perceptor (Transformers)

as AntMan in Transformers as Marvel Characters

Score: +1

Optimus Primal

as Beast in Transformers as Marvel Characters

Score: +1

Jazz (Transformers)

as War Machine in Transformers as Marvel Characters

Score: +1

Wheeljack

as Rocket Raccoon in Transformers as Marvel Characters

Score: +1

Ironhide

as Punisher in Transformers as Marvel Characters

Score: +1

Cliffjumper (Transformers)

as HawkEye in Transformers as Marvel Characters

Score: +1

Unicron

as Galactus in Transformers as Marvel Characters

Score: +1

Scorponok

as Scorpion in Transformers as Marvel Characters

Score: +1

Omega Supreme

as GiantMan in Transformers as Marvel Characters

Score: +1

Bludgeon (Transformers)

as Silver Samurai in Transformers as Marvel Characters

Score: +1

Long Haul (Transformers)

as SandMan in Transformers as Marvel Characters

Score: +1

Megatron G1

as Doctor Doom in Transformers as Marvel Characters

Score: +1

Megatronus Prime/The Fallen

as Thanos in Transformers as Marvel Characters

Score: +1

Arcee

as Black Widow in Transformers as Marvel Characters

Score: +2

Grimlock (G1)

as Hulk in Transformers as Marvel Characters

Score: +2

Bumblebee

as IronMan in Transformers as Marvel Characters

Score: +1

Optimus Prime (G1)

as Thor in Transformers as Marvel Characters

Score: +2