Thought the PSP/PS3 ones were of the separate Portable line, so wouldn't it just be comparing Wii/3DS/Wii U versions?
I was just thinking of all MH with "3" in the title. hehe
My point is the games are in sales bracket so apart from one another (5 million, 2 million, 1 million and 500k). There isn't much to compare. Maybe we can look in the future if MH3U (Wii U) will overtake MHP3HD (PS3), but not right now (especially since the Wii U isn't even in the top 30 anymore, so no numbers).