Milpai - I find them to be an exceptional value, but selecting speakers is a very subjective endeavor. Any further description that I provide would still require you to hear and compare them for yourself with the rest of your planned system. Component interaction can also be a determining factor that can make or break a given speaker selection in any given application. So I would strongly suggest that you arrange to audition the speakers you are interested in which include some very fine choices, along with the rest of your system if at all possible. Only you can determine what will please you the most, and I wouldn't want to steer you the wrong way towards reaching your desired goals. I haven't heard the other speakers that you listed but am familiar with the brands and have heard other models from those companies. Spendors generally have a more laid back presentation, while the PMCs are more forward and present. The Quads that I've heard are older models which I wouldn't compare to the newer S series you mentioned.
I find the T3s to offer tremendous dynamics with full bass extension, a smooth and uncolored midrange, and nicely extended and clear highs. They image very well with the cabinets doing a very nice disappearing act into a convincing soundstage that they recreate. In order to sound their best they require quality electronics. If you drive them with a subpar amp the highs can be too dry and analytical. Again this is why you would need to audition them with the rest of your system choices.
I find the T3s to offer tremendous dynamics with full bass extension, a smooth and uncolored midrange, and nicely extended and clear highs. They image very well with the cabinets doing a very nice disappearing act into a convincing soundstage that they recreate. In order to sound their best they require quality electronics. If you drive them with a subpar amp the highs can be too dry and analytical. Again this is why you would need to audition them with the rest of your system choices.