I am getting a Yamaha RXV 2500 130 Watt Receiver and currently have Veritas 2.3 front stereo Speakers in a average size room. I am going to add a Center and Rear Speakers.

I would appreciate receiving your recommendations and suggestions;

1 - Should I get the Energy Veritas Center Speaker V2.0Ci or the Axiom VP100? Tha Axion is smaller than the Veritas and my wife does not want the large center Veritas.
However, will the VP 100 sound good with the existing Veritas 2.3 front stereo speakers (timber etc.)? The VP 150 is out of the question, since it is wider than the Veritas center speaker.

2 - My wife hates big speakers (as mentioned). So, will I miss much quality sound with the Axiom QS 4 vs. the larger QS 8 Rears? In other words, are the QS 8's significantly superior to the QS 4's, so much so that I should not even consider the QS 4's?

Thank you in advance for your feedback, Mike