Matching 3 to make proper Timbre

[HAMP]

Well first off sorry to prerich for taking his quote from another thread, I just didn't want to hijack that one. I may have few questions about this subject.

Originally Posted by prerich

The best configuration for the front array of speakers is actually three (3) identical speakers. Many of the audio mags constantly tell of the benifits of identical speakers up front - not just speakers from the same maker. My sides and rears would never match my fronts - they are different in function (they are for ambiant sound). Timbre only really relates to the front speaker array - those should "match" meaning that HT fronts should be sold in threes' not pairs. Home Theater Magazine constanly bashes the horizontally oriented center channel. They applaud any audio maker that makes vertically aligned centers. Oh, and Beta Man knows - yes I only use matched speakers up front - check the signature - three towers or three large bookshelves if my towers ever need repaired. Seemless soundstage and no lobing!

I have kinda read on this before and I have wondered am I missing something?
I wonder if I made a mistake.

I do believe it would be better to have the front 3 identical, but it wouldn't seem right to have a 3rd tower instead of a horizontal speaker and where would 3rd tower be placed?

Using the Center channel speaker from the quintet III between the F2's seem as if they were overpowering it. Also reading how important the center speaker is and the most use from it.

I decided to get something bigger and better. Looking on the Klipsch website they have the C2 as a match for the F2's, but to me it looks like the C3 match with woofer and horn size.

After I ran the Audessay on the Onkyo 805 I noticed that my C3 db is turned way down from the rest of the speakers about 3.5db less. After listening to Transformers I don't think it was the best setting. Voices I would have to concentrate on what was being said, but then when the action started it was wow that sounds fantastic.

What makes the best Timbre? I'm not asking in price, I'm asking what makes it best. i.e. woofer sizes + horn/tweeters sizes, distances and power of the 3 speakers or the center channel being vertical or horizontal.