Some say a sober Ivanchuk is better than both.
honestly..the only true rival of Magnus is this man
There is nobody playing chess currently that has shown that he can truly rival Magnus Carlsen. It would take a once-in-a-generation talent, like Kasparov or Fischer, to fill that role, and we already have one such talent - Magnus Carlsen.

Some say that the ARB Chess System is stronger than both, but they wear tinfoil hats and drool uncontrollably.
Harry POtter!! LOL! Fabiano is a pretty good chess player. But i don´t know really... is a different player with the black pieces. Just look the classical game in zurich...
I don't get it. How can someone be so much worse with black? The guy would #2 in the world with like 2850 if he played black as good as he did with white.

Richard Rapport would be a real rival in the years to come, right now he's still a teen (Just turned 18 last month), but he's a very strong player he's 2701....
Fabiano is good no doubt
If only he was more consistent at the end of tournaments to secure the whole thing. I strongly believe he should have beaten magnus at Norway.
Other than fabiano is say karjakin has a very good chance as well

You are beyond brain dead and delusional if you still think, after all these years of false hype and disappointments, that Aronian is still a rival let alone a threat to Magnus Carlsen.

Some say a sober Ivanchuk is better than both.
On a good day, Ivanchuk is the strongest player on Earth.
On a bad day, he's the strongest player on Planet Ivanchuk.
i dont see anyone else, not hikaru, not karjakin that can compete with carlsen besides this guy
some say fabio is stronger then magnus, some say magnus is stronger