No they are not way more succesful than mourinho
Since 2011:
Massimiliano Allegri's honors list:
AC Milan:
Serie A : 2010–11
Supercoppa Italiana : 2011
Juventus
Serie A : 2014–15, 2015–16, 2016–17
Coppa Italia : 2014–15, 2015–16, 2016–17
Supercoppa Italiana : 2015, runner-up: 2014, 2016, 2017
UEFA Champions League: Runner-up: 2014–15, 2016–17
Pep Guardiola's honors list
Barcelona
La Liga: 2010–11
Copa del Rey: 2011–12
Supercopa de España: 2010, 2011
UEFA Champions League: 2010–11
UEFA Super Cup: 2011
FIFA Club World Cup: 2011
Bayern Munich
Bundesliga: 2013–14, 2014–15, 2015–16
DFB-Pokal: 2013–14, 2015–16
UEFA Super Cup: 2013
FIFA Club World Cup: 2013
Manchester City
EFL Cup: 2017–18
Leonardo's Jardim's honors list:
Olympiacos (let's disregard this)
Superleague Greece: 2012–13
Greek Football Cup: 2012–13
Monaco
Ligue 1: 2016–17
Jose Mourinho's honors list
Real Madrid
La Liga: 2011–12
Copa del Rey: 2010–11
Supercopa de España: 2012
Chelsea
Premier League: 2014–15
Football League Cup: 2014–15
Manchester United
EFL Cup: 2016–17
FA Community Shield: 2016
UEFA Europa League: 2016–17
Clearly, Pep Guardiola and Massimiliano Allegri won far more than Mourinho did since 2011. As for Leonardo Jardim, he is much younger than all of them and really started to flourish, but he has also yet to have the luxury of managing the massive clubs and finances that come with that which Jose have enjoyed. Even then, Jardim hasn't been doing badly, playing attractive football and promoting youth, reminds me a lot about how Fergie used to be in his Aberdeen days (winning leagues against all the odds, doing great in Europe).
All the above stats also mean that Jose Mourinho is clearly on the decline and way past his best. We should stop employing managers who are past it. We have done it with LVG, now Jose.