Spider Riders/Awesome

Even in the English dub, the very first time Hunter transforms has got to be an awesome moment.
Despite the fact that they spent most of there time getting whipped. Hunter and Shadow did some excellent fighting in episode 3.
The flashback scene in episode 5 with King Arachna and his Spider were very cool.
Seeing Lazy Prince Lumen kick bug-butt in episode 7 was well worth the wait. He even fought without throwing a single punch! Of course the best part is when he lets his spider Ebony out to play.
The first time Hunter and Shadow used the Oracle Key power in episode 13 was pretty sweet.
Despite that it's mostly a funny episode. Episode 20 has a very good moment at the end. When Hunter tries to end Grasshop's life once and for all... and then misses by a mile. He takes a moment to look at the audience and realizes that Brade/Quake wouldn't do that, that's pretty impressive.
Of course any time Hunter and Stags go toe to toe is A Crowning Moment Of Awesome.
It's really cool seeing Hunter and Corona working together in episode 40 to put their key in the orb. Though admittedly it's Corona who's doing almost all the work.
Almost all of the fight scenes in "Arachna Power" qualify as awesome in my opinion. Let's not forget the part when Hunter spares Mantid's life and offers him his hand in friendship. Most people think that the man should have died. But I found it to be a good plot twist, and a refreshing change of pace.