avr power ratings
vtsteevo,
I would not recommend purchasing the Pioneer just for the psuedo power rating, both AVRs you mentioned are part of the marketing that they claim 90 watt or 110 watt per channel but that's only for 1 channel fully driven, if you have 1 speaker channel, great... the extra wattage may help, marginally.
Either AVR will only feed your 5 or 7 speakers about 30-40 watts or less with either AVR... so the extra $100 is not worth it. You will clip or distort easily if you try to ramp up the volume.
To provide true real power, look at your speaker's impedence load and RMS or program wattage range then feed it with an separate amp like emotiva ultra series (125x7 is a great one) or multiple pro-audio amps like qsc or crowns or even american audio with a fan mod plus line level boost box.