Here's Pokemon X/Y's first day, you can see Monster Hunter beasting too:
http://gamrconnect.vgchartz.com/post.php?id=5576880
Here's Pokemon X/Y's last day:
http://gamrconnect.vgchartz.com/post.php?id=5721990
Here's Pokemon Sun/Moon's last day, with FFXV coming just 12 days after:
http://gamrconnect.vgchartz.com/post.php?id=8155687
Here's Final Fantasy XV's last day:
http://gamrconnect.vgchartz.com/post.php?id=8171243
I shouldn't say Pokemon is in a tier all of it's own, Monster Hunter is there too, but that's it. It's a long way down to the next tier with Final Fantasy and Dragon Quest and friends. Yokai Watch once looked like it would join one of those tiers, but it's looking pretty fucking dead right now.
Wow, that was a trip down memory lane though. Back then, Monster Hunter and Pokemon had few if any days below 10 points, and would often have long steaks of 30+ or even 100+ days. COMG just isn't the same now.