I caused a stir, that's what I was hoping for

Having seen what both rounds can do inside 100 yards, the factory loaded 45-70 hollow points inflicts much more damage than the soft point 30-06. Both rounds leave an animal very dead, but I have never seen a 30-06 leave a baseball size wound channel with a deer's shoulder hanging on by a string. Performance wise, I do give the edge to the 45cal but in absolutly no way would I feel undergunned with a 30-06. I have shot deer and antalope in the neck and shoulder and they drop like rocks with fairly minimal damage done to bone.

As far as the 30-06 being more usefull in all sorts of other applications (particularly long distance), that would be true if you were comparing say a Marlin lever guide gun versus a Browning lever gun in a 30-06. I can clearly see the 30-06 winning that arguement.
But in a double gun, where distance is limited, the 30-06 does not become the clear winning and in fact might be the loser. Of course your still have the ammo availability issue. I know I can go to the store and find my favorite 30-06 round right this moment. I'm not sure if the same can be said for the 45-70.

As a prevouis poster said, there is a lot of nostalgia associated with a big bore double barrel and therefor the 45-70 "almost" has to be given the nod. I am thinking the poll really went in that direction.