The best speaker you ever heard?

I've never heard a large system integrate everything in a natural way. They always seem to foul up the bass to my ears. Live bass is much faster than most of those big drivers produce it. I have no best but consider the following very memorable in their own way:

Apogee Stage and Scintilla (the most transparent speakers I have ever listened to)
Quad ESL-63- First time I heard them I was absolutely smitten. They still have a midrange to die for and if I were to have a 2nd system it would be based around them.
SoundLab A3 I haven't heard the big boys but I can imagine, wonderfully coherent as Albert notes but not too dynamic, damn what a shame because they do everything right, I do believe the big Soundlab might be "The last speaker you'll ever own".
IRS Beta's (except for that damn bass the rest was superb)

Merlin Millinium OK so I'm prejudiced because I own them, but I LOVE their coherence and their point source nature, I can't hear the drivers crossover and this is very important. They don't have wall shaking bass but what there is is very clean, quick and natural. They fill up a room with music without bringing attention to themselves, they just disappear. They are tonally neutral and have a liveness and an immediacy that I'll never tire of. Lastly, they have a size that is easy to live with. I would qualify them as without a shadow of a doubt the best two-way speaker I ever heard, sorry Wilson.

To add some balance to the conversation about Magico. I've heard both the S1 and S3 at a dealer's. The S1 system sounded very good indeed! The S3 less so but I WOULDN'T necessarily blame the speaker. This speaker line seems to draw a lot of controversy and I can understand why having listened to them. I find them to be VERY accurate and it would seem that to optimize their performance one is going to have to spend time system matching. In the case of the S3 system they were in a well designed room but I thought it was less the speaker than something else in the set-up that I just couldn't put my finger on. Pretty much all of us agreed on this point but as to what it was, less agreement but we all agreed, not the speaker. I haven't heard any of the other Magicos. I can see where these speakers would have broad appeal in the right set-up. Both set-ups btw, were with Ayre electronics, no problem there for sure but I would like to hear with a sufficiently powerful tube amplifier.