I've read both, but haven't had a chance to see anything in either playtested, but so far I prefer APG.
Both seem like really good books, and I would use material from both. FH has new magic items to go with the classes, while APG doesn't. I think you could easily use both and let players pick powers from both sources without too much trouble.
The Bard in FH seemed a little too complex for my tastes, at least in terms of how it relates to other classes in 4E so far.