what you say is true, they are two excellent coaches, nothing to say about it: they are two esteemed professionals and their results speak for themselves
- we have on the one hand the classic Carlo Ancelotti, heir to the AC Milan lineage who has a classic way of playing
- on the other hand we have Pep Guardiola, a talented young man with different ideas and a very friendly way of managing players
they are two different concepts of coaching but very effective, I honestly like Carlo more, because he is Italian and because he uses a classic coaching system
I prefer Pep Guardiola with his tiki taka strategy but they both have their strengths including how they handle the club now so when the two coaches meet in the quarterfinals it will be an interesting spectacle for their boys.
If Carlo Ancelotti is the heir to AC Milan, then Pep Guardiola is the heir to Barcelona? Right.

Of all the quarterfinal matches, perhaps the more interesting between them is Real Madrid vs Man City. So many will put their betting hopes on the team that is favored.
Tictac strategy is not even worthy enough to be used against modern football club. The defensive club can counter it easily by doing parking bus. Even guardiola was not even implementing it in UCL. Manchester city is always playing direct attack and counter attack. This club never use the same philo owned by barcelona.
Different teams, different characteristic.