[soltakss]

Not really.

I never used a lot of sorcery in my campaigns.

RQ3 sorcery wasn't too bad, but Free INT meant that a beginning sorcerer and a master sorcerer could cast the same strength spell, it just took the beginner longer.

I looked over the sorcery in Worlds of Wonder but wasn't particularly impressed.

I have read Sandy Petersen's Sorcery rules but didn't understand them and didn't like some of his rules.

RQ4 had some improvements in sorcery, as I recall, but they weren't drastic improvements.

RQM has a lot of sorcery, as it covers the God Learners/Jrusteli. It has a lot of sorcerous schools each with specialist spells. There are sorcery spells spcifically aimed at making HeroQuesting easier.

As to the differences between them, I don't really know. I'm not that interested in sorcery and haven't gone into things in great depth.