Denon AVR-2113 or Pioneer VSX-922-K

Hey guys, I´ve been reading quite a lot around here and now I´m looking for some advice, I have a BOSE AM6 with a Pioneer HM50 amp that I actually don´t like at all, so now I´m thinking on changing it and maybe either buying some more and better stereo speakers, or changing my AM6 for a AM15, though this option is a bit expensive, so I was debating between these two Receivers, which one would you guys choose?

Seems like the Pioneer has more power, though the Denon has this famous Audyssey system and comes with the mic, the Pioner has then the MCACC though I don´t know if it comes with a mic or something, anyways I´m not an expert on it and I would like to have the best one since I´m really thinking on slowly start improving my system.

I bought the AM6 since I heard it in some friends house and got amazed with the sound, though in my house it doesn´t sound THAT good and I´m kind of regreting that desicion after I read also a lot of not so good reviews about what BOSE promises and what it actually delivers...

At the end, I´m just looking for advice from the pros around here...anything will be appreciated, thanks a lot for reading!!

Finally got the 2113 and so far I´m loving it! still dealing with some set-up "issues" if they can be called that way, but its a great Receiver! if you´re still deciding I suggest you go for it!