Yes, I used to like Seshan in his earlier EC days but eventually realized that he is not all balanced head when it comes to true leadership vis-a-vis Indian populace and its varying stratas of econo/socio/education levels.
For a person to become a really popular and successful leader (and by success I mean not staying power but improving nation's lot), one ought to have a very good mass appeal (across all aforementioned, stratas) on one hand but also need to be very dynamic and vibrant on the other so that reforms could be carried out at bullet pace.
People like Arun Shourie, Pramod M., P. Chidambram, L K Advani, Arun Jaitley, Infosys' Murthy, Bajaj and more are such. Atal sure used to have mass appeal but I think he's become outdated in terms of country's needs. We need to move on.
Whosoever become nation's head (PM or President) must have great appeal and strong discretionary powers (if not alone, in a team) to carry out tasks.