::
CFAI material is the best, handdown. The only drawback of CFAI material is that those books are so bloody thick, that’s not even funny. :s
3rd party material is slightly thinner (emphasize on slightly), but you’re basically gambling on what part of curriculum they’ll leave behind in each and every year. Last year Elan completely nailed it, while Schweser seemed to ignore some important parts… although I’m pretty sure it could be the other way around in different time. 😛