Dravid has contributed in India's following Overseas victories
1. Headingley 2002
2. Adelaide 2003
3. Rawalpindi 2004
4. Jamaica 2006
5. Perth 2008
Sachin has contributed in following Indian overseas victories..
1. Port of Spain 2002
2. Headingley 2002
3. Multan 2004 (Sehwag scored 309)
4. Trentbridge 2007
5. Perth 2008
6. Hamilton 2009
well, frankly, so many others also must have contributed in these matches that u have mentioned, bowlers as well as other batsmen...i guess, the point here is to see, who made the most important/ significant contribution that mattered the most...if i go one by one from the beginning, 1) Headingley: 2002 - both of them scored centuries, but Tendulkar's one came in comparatively easier condition, dravid played on the first day and the pitch was more difficult, i think u will agree that his 148 should considered more important than that of tendulkar's 193...if fact, i think, it was Dravid who got the man of match also...so his knock was more significant, though i am no way trying to demean the tons of ganguly and sachin..., 2) Adelaide: 2003 - was Dravid all the way...233 and 72*...hands down...3) Rawalpindi: 2004 - again, no questions...dravid scored 270, and the next best contribution was 77 by ganguly...4) Jamaica: 2006 - again, dravid all the way among the batsmen...his 81 and 68 were two highest scores in the entire match - from india and west indies...5) Perth: 2008 - this one is a bit close between sachin and dravid...u mentined it in both sachin's and dravid's list...which is fair enough, but again, the most important innings was Dravid's 93 in the first innings...tendulkar scored 71 in the first also, while laxman also made serious contributions...i think it's fair to say, that no one had that one significant contribution here, laxman scored most runs, and dravid's 93 in the first innings was the highest in the entire match among the two teams...but still, let's not give it to anybody6) Port of Spain: 2006 - this one goes to tendulkar, marginally, cos while tendulkar in two innings scored 117, dravid scored, 103...but think, tendulkar gets this one...7) Headingley: 2002 - already mentioned...8) Multan: 2004 - well, this one clearly goes to Sehwag...hands down, (if tendulkar is mentioned in this one, than dravid should have been mentined in that port of spain one also...9) Trent Bridge: 2007 - this one is again very very tight...i think u gave it to tendulkar because of that 91...dinesh karthik scored 99 runs in that match (77, 22), tendulkar scored 92 (91 and 01), jaffar scored 84 (62 and 22), not only that, laxman scored 79 in one innings and ganguly also scored 54...they didnt need to bat in the second...almost everyone contributed...let's not give it to anyone (like perth)...10) Perth: 2008 - this one has already been talked about...11) Hamilton: 2009 - this one belongs to tendulkar, hands down...and i think u have missed out the match in the recently concluded west indies series...which should have been the 12) Sabina Park: 2011 - this one, i think u will agree, dravid...
so i will say, most important contribution wise, the list should be
Dravid
Headingley 2002
Adelaide 2003
Rawalpindi 2004
Jamaica 2006
Jamaica 2011
Tendulkar
Port of Spain 2002
Hamilton 2009
so it's 5-2...headingley marginally to dravid, port of spain marginally to tendulkar...leave both of them, it's 4-1...