It is probably not a surprise for any of you to discover that I'm a fan of Chaosium and their latest fantasy game, Magic World. The Magic World game is almost as if Chaosium is retro-cloning themselves. The game is the old Elric!/Stormbringer 5e game from them, with all of the Moorcockian references stripped out and a fine fantasy game let in it's wake.
If you're looking for a lightweight BRP game that has everything you need in one book (including compatibility with the Big Gold Book BRP book), this is the game for you.
As a service, I have come across a document of errata and clarifications to share with you. Click here and find it on Google Drive. Three pages, not too bad really.