Max currently is the best driver of his generation no doubt. My only criticism of him (and its not his fault), is that other than 2021, he doesnt have any title battles to speak of. Thats why he reminds me of a young vettel. Who everyone would wax lyrically about and was going to smash schmachers WDC record and then some.
I want to see max pushed to the absolute limit, physically, mentally and emotionally. Thats the only way we will see his ceiling as a driver, even his biggest fans should want that. We wont see any of that while he drives off in the distance without conpetition (again not his fault).
I'm so old i remember seeing Senna. Prost, Mansell, Schamcher, Hamilton, Alonso beimg pushed to the limits in titanic championship battles. If we dont get to see that with max in his career then its a loss for everyone who loves the sport.
Horner said earlier this season (about perez), that he couldnt beat max on pace. The only way he could beat him was to punish 100% any slipups from max and his side of the garage. Be that grid drops or parts penalities. Plus having his side of the garage implement race strategy better than maxs side of the garage.
Perez obviously cant do that. Alonso could as you said. You could also see alonso being the cunning, manipulative driver he is, turn the screw and turn the RB pit garage into a pressure cooker. It could become peak Roseberg/Hamiltom or Prost/Senna or Pironi/Villeneuve. It would be box office to watch.
If not Alonso, then i hope RB somehow even by accident, luck into getting the other best driver of max's generation into the other seat next to him. So we can see them go toe to toe in epic championship battles. Who that driver is i have no idea. There are many pretenders but no one stands out to rival max. The best of the best of the previous generation will be gone soon (hamilton and alonso). We were robbed by fate of schmacher v senna. I hope we get a proper titile battle of max v hamilton or alonso before they retire.