I think Gandhiji has a special place and it can't be replaced by anyone else.
I agree. There can be no other Gandhi. Mahatma Gandhi was a great man of international stature and such great man is born in thousands of years. It is remarkable that he fought for just and proper cause only. So, he called his movement as Satyagraha, which means 'insisting on truth'.
Presently, the movement by Anna is not justified as the Lok Pal is with parliament and only parliament has the authority to pass this. Insisting on passing the draft prepared by the anna group is not proper and so this is not Satyagraha as understood in Gandhian thoughts.