There was a thread about Pratt and Thom recently - do a search and you'll find it. Bottom line: they're both good. Note that you should use CAP413 for the RT exam, not the Thom or Pratt radio books, because CAP413 is right. Always.
Apart from that, Formation Flyer is spot on. That's what I did recently (last of the seven completed a week ago), and there's no better way to prepare. The only exception is RT Theory which isn't in the Confuser - you're stuck with CAP413 for that one.