Originally Posted by Professor Geoffrey
All I can say about Sinnoh is that I'm glad it's finally over. xD
As per the rest of the series, Kanto and Johto were pretty amazing. Hoenn is where it began to decline (and crash-landed), and Sinnoh was part two of the decline where it went even further down that we expected; underground! And with Unova, it seems to be coming back up. Unova looks very promising.
Let us hope it is a plane, and not a glider, 'else it will never get up again.