Yeah, I'm leaning more and more to either Chlorophyll or Flower Gift. A major issue I had with Chlorophyll is that it doesn't help in the match up versus Toad, because you won't have your speed boost then. But honestly, Toad is only sitting at 70 speed. I see no reason why we can't sit at a comfortable 75 speed and always outspeed Toad naturally, while needing the Sun boost to get more comfortable fighting chances against Lati@s.
I didn't like Flower Gift for the exact same reason, it basically relies on Sun to net a decent Sp.Def, because I assume that if we choose this ability, I'd assume we'd factor in this ability in the stat department. But honestly, all we have to do is have enough base Sp.Def to counter the Toad, which we fare rather well against because of typing. And for Lati@s again, we'll need the Flower Gift boost again to be able to very comfortably tank the Draco Meteor's.
Of course, in both situations, both abilities will have one haeck of a time against a Lati@s on a rain team, as it kind of relies on said abilities in combination with Sun to actually check these mons, which could be an issue.