I know that Sir Dan is pretty bad, since all of his supers are pretty terrible, but at least his moveset has fast AP gain and some pretty useful tools
Radec has nothing, he has no combo-ability to speak of, his close range attacks net almost no AP, and his long range projectiles are so predictable that they will not work against any player who has any idea what they are doing
Unless I'm missing something, Radec seems to have no redeeming features, except for being able to camp at the other side of the level in FFA's, not that I really consider FFA when thinking about character balance
This guy is a jerk : http://www.gamefaqs.com/boards/user.php?board
I play him and I must disagree. Sure his AP gain isn't amazing and he has no ludicrously long high AP combos that I know of, but his level 1 is godlike against unsuspecting opponents and can punish whiffs and throws from the other side of the arena. The only times his close range moves should be used is for "forward square > sniper" combos to get people off you (EDIT: Well, if you can you can start some stuff off his jump square kicks, but don't ever go out of the way to do it, imho). He doesn't need combos. Harassment for the win.
Currently playing: Project Diva F, Zero Escape: VLR, Persona 4 Golden (Vita), Pokemon White 2 (DS)