What are the major considerations in choosing a best man. Kindly share your views.

Interesting question. Someone of mine's family insisted that he use a relative and I wondered why. Their reason's that he's family - just like that. The tradition of picking a best man/lady based on fondness, has been weathered over time, so much that people almost never find the will to meet that interesting "friend" of their friend at such occassions anymore. While some may still use closeness as a criterion, others just want people that can work their bottoms off, or that are financially strong to lavish an absurd amount of cash on something that doesn't directly concern them.