viriya
International Captain
I think he has done much more than Sachin in Tests - better record and more match-winning innings (Sachin of course is notorious for not having as much impact as say a Dravid or even Sehwag in Tests).As far as Asian batsmen go I think he has a very good shout to be better than everyone bar Tendulkar.
Sachin wins the ODI comparison hands-down - imo the greatest ODI batsman of all-time with only Viv a potential alternative with Kohli with the potential to surpass..
Solely on Test terms, I think Sanga has done more than Sachin, but overall Test + ODI Sachin still holds his own. But the "best since Bradman" argument is by nature a Test-only claim anyway.