These episodes are fillers with some lore.
Only Reshiram is discussed. No Kyurem. No Zekrom.
N is a boring character. His game version has more to say.
The exact story from games is not adapted here.
They should've used the time and money from next season and used it here. The whole Zekrom vs. Reshiram thing can be explored more.
Very few episodes are focussed on N and Reshiram, and most of the episodes are fillers.
Nothing of interest happens here. Fillers are better than the N related episodes.
Dialogues and acting in the Japanese version is better than the English version