The answer depends on which Frankenstein Monster you mean.
In the original novel, he (the creature/monster) was eight feet tall and, apparently, fully proportionate with his height. That would make him much stronger than any human just by virtue of his immense size and muscle mass. He is said in the novel to also be superhumanly fast and agile.
The old Universal movies are probably the best known rendition of the Monster (square head, bolts on the neck, etc). These films spanned 1932-1948 but continuity between them was loose and inconsistent at best. However, they all are supposed to feature the same Monster.
In the Universal movies, the Monster's strength varies considerably. It begins with Boris Karloff's original Monster, who is perhaps two or three times as strong as a normal man, though incredibly tough and nearly impossible to subdue, hurt, damage or destroy (besides the basic makeup design, this is perhaps the one consistent point throughout all Universal's films...he gets progressively dimmer as time goes on, but gets much more physically formidable and frightening).
The next big jump in strength has to be Bela Lugosi's Monster in Frankenstein Meets the Wolfman. The Monster, upon receiving an electrical recharge, casually flings heavy lab equipment across the room and beats the snot out of the Wolfman whenever he manages to get a hold on him.
Finally, in 1948, there was Glenn Strange's supercharged, robotic giant in Abbott and Costello Meet Frankenstein. At the start of the film, the severely weakened, near comatose Monster can still carry a couple hundred pound coffin single handed. At the end of the film, he's fully recharged and not only moves much faster than before but rips a huge iron gate out off its hinges with one hand.
Of course there are literally dozens of other depictions of the Monster, all of which are, at minimum, superhumanly strong.
As far as toughness goes, however, the Monster is near the top of any list. In various movies he has withstood multiple gunshots to the heart, blazing infernos, explosions, being immersed in 800 degree sulfur pits, burial underground for years, brain transplants, freezing and drowning. It should go without saying that he survives electrocution with no problem.
Frankenstein is actually the young scientist that made the monster in Frankenstein. The monster he created has no name. It is a common misconception that Frankenstein is the monster is in fact Frankenstein.
The monster has been forced into solitude, whereas Frankenstein has chosen it.
Frankenstein's monster leaves messages and food for Victor because the monster wanted him to live and suffer.
Society was responsible for the monster's actions in Frankenstein. The monster only did the things it did as a reaction to the circumstances he was placed in.
The monster demanded Frankenstein to make another; a female. Frankenstein did this, thinking that the two would accept each other and leave society alone. However, as he neared the completion of the female, he realised the evil he could be unleashing if he made another and destroyed her. The monster killed Frankenstein's wife on their wedding night as an act of revenge.
The idea of Frankenstein the monster comes from Mary Shelley's Gothic novel Frankenstein. However, it is a common misconception that Frankenstein is the monster. In the novel Frankenstein is not the monster instead he is the man who creates the monster.
Victor Frankenstein was the scientist, who created the monster. The monster is often called Frankenstein's monster, or simply Frankenstein.
Frankenstein's monster
Frankenstein is actually the young scientist that made the monster in Frankenstein. The monster he created has no name. It is a common misconception that Frankenstein is the monster is in fact Frankenstein.
Victor Frankenstein was the scientist, who created the monster. The monster is often called Frankenstein's monster, or simply Frankenstein.
Frankenstein is the creator of the monster. The monster is unnamed.
No, the scientist created the monster. Did you ever heard of Frankenstein's monster. This proves that he made the monster.
The monster was not Frankenstein, the Doctor was. Doctor Frankenstein created Frankenstein's monster.
Frankenstein Jr (Frankenstein Junior) will be a good name as the creator of the Monster was Frankenstein.
Frankenstein's Monster.
Frankenstein's last name is actually "Frankenstein". The character is Dr. Victor Frankenstein, a scientist who creates a monster in Mary Shelley's novel "Frankenstein".
I would say Sonic the Hedgehog. Purely because I think you mean Frankenstein's Monster. Frankenstein was the Doctor that created the monster and technically not the name of the monster.