The different between gandhian way and other ways is the former has attained world wide credit and acceptance. I feel gandhian way is the best to attain any goal.
Mahatama Gandhi preached non violence, truth, honesty and simplicity. These are definitely beneficial to the whole world.
But it will be disastrous to follow these unilaterally. You cannot be non violent to terrorists and traitors. You cannot be truthful and honest to the cheats. You cannot be too simple in a marriage ceremony or in an interview.
While following Gandhian principles, we should not go to extremes and observe moderation.