I believe Jao and Mikay make for a better story not only because of how they are as individuals, what their values are, their selflessness and how they are better together in various situations ranging from light moments to serious ones.
I consider Jao and Mikay to have established a healthy friendship/partnership over time, starting from when they met in Yangdon, in Manila and until now. They had their share of tough times and they helped each other out, they were there for each other. After the fire, when Jao professed his love he said that Mikay changed him, and she replied the same. It's true, they have changed and grew and I believe they became better people.
Another reason why I believe Jao and Mikay make for a better story is I see more obstacles and twists and motivations and implications and yes, even lessons that would make for a compelling and satisfying story (of course, if only the writers would be allowed to continue with their original story and not be pressured into caving in yet again and adding contrivances in the script due to angry bursts and complaints).
Just because Jao wasn't kidnapped with Mikay, didn't soak in the rain or whatever force of nature befell on Gino doesn't mean Jao deserves Mikay's love less. As we've witnessed countless times, Jao's sacrifices are of a different nature... they're more of the "suffer in silence" type. More of "torn between love and duty" or "between what is convenient and what is right". In some instances he could've complained, thrown a tantrum (like another character), blamed everyone else, but he never did. He takes them like a man and just bore the consequences and the pain.
Given his virtues and integrity, I know Jao would do all he can to protect Mikay if he was in Gino's place during the storm/landslide and during the kidnapping. In fact, Jao risked his life in those times as well. He went as far as to find Mikay and Gino and their kidnappers himself, and against the wishes of his mother (who we know is difficult, to put it mildly). In San Isidro, Jao helped someone he didn't even know. Jao's heart and kindness doesn't stop with how he treats Mikay or his family, it knows no bounds.
In my earlier post I have already given some reasons why I eventually rooted for Jao for Mikay, and I want to add to that. By the time Jao professed his love for Mikay, it was long overdue. He planned on not telling her at all, he actually resigned himself to the fact that he'll be loving her from afar, one of his reasons being is that he didn't want to take her away from her happiness, i.e. her family (the Maghirangs) in the Philippines who she loves. Like always, he only wants to make her happy. And if I remember correctly, when he finally told Mikay he loves her, he said he doesn't expect anything from her, just that he needed to say it. I guess my point is (although I'm sure like anyone he'd like it if it was reciprocated) that Jao is not the type who expects anything in return for his love, he has said and has SHOWN that loving Mikay was enough. And for me, that is selfless, it makes his love true. There is no doubt in my mind that Jao has continuously given Mikay love. And lucky is she who is loved by Jao.