I don't think that Rob Hubbard is overrated at all. What did it for me was Flash Gordon. Watch the film and then listen to the game music. He did an amazing job in using very similar themes to the film but creating some really excellent new music. It's very cleverly done. There are some amazingly well put together pieces as well.
I was surprised when I first found out about the Zoids/Master Of Magic = Synergy thing, but then I bought the Synergy album and realised that the Zoids and Master Of Magic tracks are actually much darker and better.
A lot of the musician's back then just took other existing tunes because nobody really cared.
Bit of info for you: I did the music for MegaApocalypse2 (never released), so got to know Simon Nicol quite well. Simon told me that he asked Rob to do a rock track for Crazy Comets, but Rob came back with what is now the Crazy Comets tune and obviously blew Simon away.
And he's a really nice guy. Very dry.