Deck, it seems to me like you are missing the point when it comes to arguments against Drought. First, you talk about how sun sweepers can beat it, but really, what does that even mean? Venusaur is the only sun sweeper even in OU (and most are in RU or worse). Unless we are resigned to the fact that Drought CAP3 would be so ridiculous that sun would become dominant and it would pull guys out of the depths of NU (which itself would be a reason not to give it drought), then it doesn't matter if it loses to Exeggutor, cause it will never see it. And even more importantly, this only matters if your opponent has sun sweepers, which they only will if they are running sun themselves. If we are resigned to only beating drought by running drought, then something is wrong. Additionally, as FlareBlitz showed previously, its counters, bar T-Tar, CANNOT take a hit and still KO back. At least not more than one hit. Sure Terrakion isn't OHKOd, but it can only come in once. Switch out after that and Terrakion is no longer a threat to you.
Also, what you talk about with Dry Skin in sun makes no sense. Drought outclasses it in every way. Everything you talked about is done better by a drought one than a Dry Skin one. The only exception is a double switch vs a chlorophyll sweeper outside sun. But lets think about that one for a second. When will it be outside sun? If its on a sun team, the player will likely set up sun before sending in its sun sweepers. So really, that means this would have to be in rain or sand, most likely with them having just switched out from Ninetales. Its not a common situation, and not one where you will likely be switching in CAP3 anyways. But then, even so, it doesn't matter in the slightest, as the only sun sweeper that matters, Venusaur, still outspeeds anyways. Which means you lose absolutely nothing by running Drought over Dry Skin.
And finally, as for the typing itself, Toxic and Burn immunities help every Pokemon. Trying to call that more important to weather starters than other Pokemon is just foolish, especially when we have what amounts to an offensive stat spread. In fact, the only actual reasons related to the typing that I have seen people give in favor of drought are just the natural benefits of the typing that are important no matter what ability is chosen.
All that being said, I cannot possibly see a way that Drought will not completely overshadow Dry Skin in every way. It lets it beat every one of its counters bar T-Tar, and turns a Pokemon its supposed to counter, Politoed, into one that can switch into it and force it out. It is not at all in line with the direction we have chosen, and frankly I cannot understand why we are still considering it in light of that.
Personally, I support No Competitive Ability. Dry Skin will be enough to give it a niche in OU. There is a reason the vast majority of OU Pokemon only have one useful ability, cause one role is so much better than the other. We chose Dry Skin, and we should not be choosing anything else that will overshadow that.
Also, what you talk about with Dry Skin in sun makes no sense. Drought outclasses it in every way. Everything you talked about is done better by a drought one than a Dry Skin one. The only exception is a double switch vs a chlorophyll sweeper outside sun. But lets think about that one for a second. When will it be outside sun? If its on a sun team, the player will likely set up sun before sending in its sun sweepers. So really, that means this would have to be in rain or sand, most likely with them having just switched out from Ninetales. Its not a common situation, and not one where you will likely be switching in CAP3 anyways. But then, even so, it doesn't matter in the slightest, as the only sun sweeper that matters, Venusaur, still outspeeds anyways. Which means you lose absolutely nothing by running Drought over Dry Skin.
And finally, as for the typing itself, Toxic and Burn immunities help every Pokemon. Trying to call that more important to weather starters than other Pokemon is just foolish, especially when we have what amounts to an offensive stat spread. In fact, the only actual reasons related to the typing that I have seen people give in favor of drought are just the natural benefits of the typing that are important no matter what ability is chosen.
All that being said, I cannot possibly see a way that Drought will not completely overshadow Dry Skin in every way. It lets it beat every one of its counters bar T-Tar, and turns a Pokemon its supposed to counter, Politoed, into one that can switch into it and force it out. It is not at all in line with the direction we have chosen, and frankly I cannot understand why we are still considering it in light of that.
Personally, I support No Competitive Ability. Dry Skin will be enough to give it a niche in OU. There is a reason the vast majority of OU Pokemon only have one useful ability, cause one role is so much better than the other. We chose Dry Skin, and we should not be choosing anything else that will overshadow that.