Hi there
Well this team is the epitome of standart Ho-Oh teams by now I suppose, so I'll only limit myself to suggesting Dialga over Palkia because of your screaming Dragon weakness that can and will bite you back if you rely on Forretress to take on all of them, especially SubPalkia and such; while one of Palkia's main perks is already going to waste because you have Kyogre very well covered by Latias. Of course this gives you no extra resistance and makes you weaker to DD Rayquaza, but at least gives you something that won't die because of a dragon sneeze.
Good Luck =)
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