This debate is nonsensical.
Drop bars with hoods is the best setup...period. This is not even a debatable issue for road cyclists...only here where fashion usually grossly overpowers function. People who find drops innefective for climbing are probably not using hooded brakelevers.
Hoods+drops will give you the hand positions that you get with 'horns, plus an additional aero position. If you can't climb effectively with drops then you aren't doing it right. Install some hooded levers and learn how to use them.