The princess bride is one of the greatest books and one of the greatest movies of all time, with it being a near perfect adaptation. That being said, the movie and the book give inigo, fezzik and vizzini slightly different vibes.
In the movie, Inigo is a great swordsman with an awesome backstory, fezzik is a giant and Vizzini is smart. They’re good at their jobs, and they’re mercenaries.
In the book Inigo is the single greatest swordsman on the planet. After the count murdered his father he began training and, at some point, ran out of people to fight and things to learn which is part of the whole drunken stupor thing. He’s second to none. Wesley is beyond brilliant with the sword but only actually better at it than Inigo on flat terrain, because he learned to fight on a ship. Basically he’s poured all of his stat points into one spot. If Inigo hadn’t messed around and in the end gotten himself stuck on flat ground Inigo wins the fight.
Fezzik is a giant. When he was younger he fought professionally, for sport. He stopped doing this because every match was over in a few seconds. That’s how he got depressed and ended up broke and homeless in Greenland. If he had gone for the kill immediately with the rock, if he hadn’t been rusty, he wins the fight.
Individually these 2 literally ran out of worthy adversaries. With vizzini in charge, they weren’t just good mercenaries, they were legendary. There’s a reason they got hired by a nation to start a war, there’s a reason why they managed to invade the fully on alert castle of a monarch, assassinate a count and nearly assassinate the to be king and kidnap his fiancée.
The book still did the whole “true love conquers all” thing, but even with Wesley having this behind his actions he nearly lost his life to those 2.