Correct approach. I think it's also about what kind of team each captain left for their countries. Did those teams fulfilled their potential? I had one post where I was trying to see all captains during IK's time and their
away record with some context. I had ignored the home records due to biased umpiring. Here is portion of that post,
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We are looking at away records of captains who played around same time frame and also what kind of team they had. We are also not talking about W/L ratio here. We are simply looking at how much they won outside taking account of resource they had.
Great-to-good away performances:
- AR Border (Aus) : Won 13 out of 42 ( Great record. Had a very average team , left a great team which dominated cricket )
- CH Lloyd (WI) : Won 23 out of 50 ( Great record. Started with a losing team, made them a great team. Plenty of legends playing in his team)
- JM Brearley (Eng): Won 6 out of 12 ( Great record. I don't have clue about quality of team he had but fantastic record)
- Javed Miandad (Pak): Won 4 out of 12 ( Good record. Had same team as IK)
Average Away performances:
- Imran Khan (Pak) : 26 played won 5 ( Average record. 2-3 legends and few good players)
- N Kapil Dev (India) 14 played won 2 ( Average record. 2 legends and few good players)
- GP Howarth (NZ) Played 13 won 3 ( Average record, no clue about quality of players )
- Greg Chappel won 3 out of 15 ( Average record, no clue about quality of players )
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Border and Loyd stands head and shoulder above others in their era in three things:
- Inheriting a losing team and built a winning team
- One made the team the greatest one in history and other left a team a team which dominated cricket for years.
- They won lot of matches away from home when compared to other captains of same era.
Winning and losing shouldn't be looked in isolation but I feel Border played with very weak team and still won so many games away. He also set the foundation of a team which dominated the cricket for years to come. Loyd also took a weak team but he had many great players with him but credit for taking a losing team and making it world beater.
For me, it's Allan Border over all names discussed in this thread by a comfortable margin. I will take Border over Dhoni, Ponting & IK ( three captains mentioned in the title of this thread) without hesitation.
[ Note: I haven't watched any captain during IK's time so it's mostly by input of others who watched them play]