Mega Evolutions, like regular evolutions, were designed to be better than their regular counterparts. Even some already great Pokemon got Megas. However, with mega evolution, some Pokemon's niches change as well. Take Gengar for example. He got dressed up with some buffed, well, everything! Better bulk, better Special Attack and Speed, and even got Shadow Tag, often considered the best ability in the game. Undoubtedly he will be banned to ubers. But what about normal Gengar? He doesnt have the tools to be banned to ubers, but he will likely remain a solid force in OU. Niches change when the fact comes along that normal forms can hold items, and like with normal evolutions, abilities, typing, and stats change. Even mons that likely will be in the same tier like Blaziken and his Mega can embody different niches because of factors like items held. They're simply too different to be compared solidly. So what im thinking is this: should be tier Megas separately due to their differing qualities?