I decided between these same two planes. Both planes are reportedly of very high quality. The H9 is about $100 more and includes no hardware (another 70 or so). The H9 cap also has a one piece wing.

The GP Wagstaff Extra has a complete hardware set which is of very high quality and includes a 2 piece wing.
If you can't tell, I went with the GP PW Extra.
This arf is of phenomenal quality. Mine isn't built yet, but all of the flight reports on this site say its awesome. I still need to decide on servos and an engine.
Good luck with your decision.
Dave