Personally, Jayce and the Wheeled Warriors is the greatest, with Thundercats closely seconded (but im putting Jayce as Thundercats is known by everyone)
Thundercats is awesome, but i reckon the "Original" Teenage Mutant Ninja Turtles theme song. If you were born in the 80's you should know this, worship this show, and not watch the new gay versions.
"TMNT" is KVLT !
"Voltron - Defender Of The Universe" - I still feel some epic feeling when hearing the theme
"Spiral Zone" sounds really melacholic to me, but i like it... a lot !
And i love "Thundercats" and "Jayce and the Wheeled Warriors"
...but...