WOW, I would have never imagined that receiving so many responses in such a short period of time. THANK YOU to all that have contributed so far to this thread. VERY useful information. Unfortunately, it has not made the decision any easier, LOL.

It has raised more questions than answers. From what I have gathered here, the simple fact that a speaker measures well, does not mean that it will sound good to everyone, and vice versa. I am not technologically savvy with electronics. What exactly does it mean when you all state that a speaker measures well? What does all of the plus and minus a certain number of decibels mean? On Axis response stands for the response of the field that the speaker is aimed at and off axis is the field surrounding the speaker, but not directly on its path? Some explanations of these terminologies would be beneficial.
PS: RIDIKAS, the GX 300 towers and GX350C center have two 6 1/2 inch woofers and a 4-inch midrange in each speaker. Now the Legacy Signature SE has two ten-inch woofers, a seven inch midwoofer, and the new dual air motion tweeter, which kind of has a small 4-inch tweeter to handle lower frequencies and a smaller super tweeter for the higher frequencies. The Silverscreen center has two 8-inch woofers, a 5 1/4 inch midrange, and the ribbon super tweeter, but they will not get the new dual AMT.
PSS: Audioholics will soon be testing the Legacy Focus SE with the new dual AMT. Legacy is building Audioholics a set to test. In fact, Gene conducted an interview with Bill from Legacy recently.