Just had a discussion a few days back, with two personalities being compared:
1) Master Blaster - Sachin Tendulkar
2) Super Star - Shahrukh Khan
The debate was on 'who do you think is more popular' and just that. Not who has more money or who is a better man.
As for me, Sachin's certainly a Legend, just like SRK and only bigger one at that.
But I do not agree if you say he is a real life hero or real performer. I feel both the legends are giving output of some entertainment media.
And I'm also a fan of Sachin, love him, watch cricket primarily for him, cherish the moment I accidentally stumbled onto him!!! nothing of the sort with SRK -- he is smart, quick to quip, a better front-man for any representation.
Although it's not a level-field comparison, both are in different fields and thus just can't be compared -- But that's the question
I say, in his field, Sachin certainly rules - Globally. Same is not true for the other.