The following hadith shows that there are 100 grades of Jannah:
The Prophet (ﷺ) said, "Whoever believes in Allah and His Apostle, offer prayer perfectly and fasts the month of Ramadan, will rightfully be granted Paradise by Allah, no matter whether he fights in Allah's Cause or remains in the land where he is born." The people said, "O Allah's Messenger (ﷺ) ! Shall we acquaint the people with the is good news?" He said, "Paradise has one-hundred grades which Allah has reserved for the Mujahidin who fight in His Cause, and the distance between each of two grades is like the distance between the Heaven and the Earth. So, when you ask Allah (for something), ask for Al-firdaus which is the best and highest part of Paradise." (i.e. The sub-narrator added, "I think the Prophet also said, 'Above it (i.e. Al-Firdaus) is the Throne of Beneficent (i.e. Allah), and from it originate the rivers of Paradise.")
Allay says in the following ayah (7:43) that our hearts will be free from bitterness:
We will remove whatever bitterness they had in their hearts. Rivers will flow under their feet. And they will say, “Praise be to Allah for guiding us to this. We would have never been guided if Allah had not guided us. The messengers of our Lord had certainly come with the truth.” It will be announced to them, “This is Paradise awarded to you for what you used to do.”
According to the previous ayah, we would never compare between one another. So, makes it special to be in a higher degree of Jannah that another?