Ok, lets assume that the op is not a fanatic fanboy and normal logic does apply for a sec, then we can say at least the following:
Both Sakura and Tsunade have no answer for Konans jutsu that she used against Tobi involving 5 minutes of continuous explosions. In fact, there is only one ability that can effectively counter this jutsu, beeing the sharingan wich again, no known konoichi posesses. (Arguably some other stuff may or may not work, like ftg and a bunch of other stuff)
Healing is all fine and dandy, but if your head gets blown off its over.
Another thing to consider is, that Juuken could potentially nihilate the chakra flow in ones body, by hiting the tenketsu. Hyuuga clan is known for both speed and accuracy - wich both sakura and tsunade lack. Potentially a female Hyuuga clan member could thus beat Sakura and Tsunade - if said member was able to dodge every blow.
I'm not gonna rate any Konoichi over another here, the point I'm trying to make is: different konoichi have different things they are good at. In oh-ko potential I'd go for Konan, for a versitile mid-long range fighter I'd go for Mei, for a support/medic ninja I'd go for Tsunade or Sakura (in the manga they are pretty damn equal right now, the only argument I could accept right now is, that Tsunade still has more experience, wich would put her slightly ahead), for scouting and assasination I'd go for a female hyuuga (there are more female hyuuga than just hinata, even though we dont know their names, hinata is just derpy) and for intel-gathering ino would be my choice.
Dont make life simpler as it is. You cannot compare apples with oranges.