He's had three money-spinners - YJHD (DPad), Rajneeti (Katty), and Ajab Prem (Katty). All three are with top tier actors. His lesser Hits like Barfi (one of the best trending movies of recent years) and Rockstar (again - another acclaimed masterpiece from a director whose BO record is rich) also warrant that RK needs a good script and director to achieve success. He's not the Khans or Akki who can manage Hits even with crappy scripts.
To put it into perspective, Jai Ho was made in 15 crores. They sold it for high prices, but the fact that a Salman cartoon show for 15 crores did as much, if not more as Barfi (more expensive production cost than JH) - one of the most acclaimed movies in recent history - says it all.
There are 3 bona fide superstars in Bollywood - the Khans. After them, it's Akshay followed by Hrithik. RK is closer to Ajay than he is to Akshay/HR, so we could forget about the Khans.
Also, out of all RK movies, only three have worked both in the plexes and the single screen - YJHD, Rajneeti, and Ajab Prem. Do the math now.
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