To me, Bionicle/HF parts work for Bionicle/HF, not human characters such as GL, Batman, Samus, etc.
Galidor-like parts, however, did work well for human characters, thought the hands could've been molded better.
As I said before, both lines are equal in and of their own theme. And remember, the Galidor figures are based off the show, not the other way, as it was a liscensed theme. Bionicle was a pure idea from the people at LEGO and nobody else.