To me, the major similarity between these three young men is that each of these men feels (at some point in the play) that his family has been wronged and he needs to take revenge. Fortinbras's father was killed too, and part of his kingdom taken.
For Laertes, the wrong is later in the play, but his dad has been killed too.
They both have dead fathers that they wish to avenge yet they are so different in their demeanor, and how they want to go about their business.
Hamlet is more introspective and thoughtful about his revenge, maybe to a fault because he can’t seem to actually get it done, but nonetheless is constantly thinking about the details of the revenge, and is willing to take his time to make sure it goes off perfectly.
And Hamlet does more than just sit around and worry.
His character is considered to be one of the great thinkers of English literature.I feel like that’s what makes Hamlet’s revenge so appealing to readers, being able to delay and contemplate his actions make it different than any other revenge tragedy we’ve read so far.Hamlet’s fourth soliloquy is an important change in thought process that shows how the army of Fortinbras is so willing to walk into their graves over something as insignificant as a small plot of land while he’s not able to carry out his revenge, which is something that he believes is justified. How stand I, then, That have a father killed, a mother stained, Excitements of my reason and my blood, And let all sleep, while, to my shame, I see The imminent death of twenty thousand men That, for a fantasy and trick of fame Go to their graves like beds (They suffer the loss of their fathers, as Hamlet does.Fortibras sets out to attack Denmark to avenge the death of his father in battle against Denmark, but is stopped by his uncle, who is now king of Norway.And there are numerous possibilities that might cause him to delay his revenge: he is unsure of the Ghost's identity for the first half of the play; he is suffering from depression and maybe madness; it is not a small thing to kill a king; he doesn't want to send Claudius to heaven by killing him while he is confessing his sins, etc.But, for better or worse, Fortinbras and Laertes do serve as foils to Hamlet.He has lost everything: mother, girlfriend, and his own life., Fortinbras and Laertes serve as foils to Hamlet.They present alternative ways of handling the same situation that Hamlet is in.In the end, quick personal revenge causes one to be manipulated.Hamlet is caught between revenge and mercy, mainly because of fear of damnation and problems with his mother.