People that are on Madaras jock don't understand that when he was alive he was weak (in comparison of the 3 I mentioned). People say Rinnegan Madara or Jinchuriki Madara wins. Well just to start that was all black zetsu planning. So Jinchuriki Madara died. Lets talk when he was alive. Yes he was old but he even at a young age would not have the chakra reserves for 2 rinnegans. I mean he needed 9 tails to fight Hashirama and still lose. People say its plot why Madara lost to Sasuke and Naruto but its Plot that made him that powerful lol. Bottom line.
Itachi is the smartest.
Naruto is the strongest/fastest
Sasuke is the most well rounded.
Not have the reserve for the Rinnegan? You do know that an Uchiha's chakra grows as they unlock stronger eyes right? Sasuke's chakra grew in reserve and power when he got MS, EMS, and Rinnegan; same would apply for Madara who had Rikudo chakra the moment he unlocked Rinnegan (Hagoromo said Madara brought out his, Hagoromo's, chakra after gaining both Indra's and Ashura's chakra. Also Madara fought Hashirama all day in a landscape changing battle; Kurama never gave Madara chakra, Madara only used him as a tool/weapon for his power but Madara controlling him does show how strong his reserve and genjutsu are.
Madara is the most rounded ninja, his knowledge, experiences, speed, power, and skills are all high in pretty much all categories; he was even able to steal Hashirama's SM. I don't know why you put Itachi on here when he can't see Limbo which alone makes this neg diff for Rinnegan Madara plus EMS Madara is levels above Itachi (Edo Itachi was fighting a KM Naruto who had 1/13th his total power at the time pretty evenly since Naruto only wanted to talk while Edo Madara fought BM Naruto, Gai and full BM Bee and was beating them). So those who mention Yata, it's useless since Madara has 4 Limbos and one can easily attack from the back or just use deva path to push Susanoo miles away which would kill Itachi