Alta Alec vs Legacy Signature SE vs Elac Vela 408.2

I'm thinking of purchasing new floor standing speakers and have narrowed the field to the three mentioned in the title. My focus is mainly on the first two. Reviews are consistently great. The Alecs appeal because of references to their somewhat unique - if that's the right word - sound. Natural, musical. Definitely want musical. Their size is also perhaps a better fit. But there are comments about their needing a low of power or current. I'd be willing to change my amplifier options to accommodate this if necessary (I have a Prima Luna tube power amp and an NAD C298 amp that I can try). I just want to "best" sound, which of course is somewhat subjective. The Legacy's seem to be unequivocally full range, and being an old guy, I like the 10" woofers. I like the two AMTs also. As a four-way speaker, do they lack coherence? They are big, but the sealed design can allow me to place them closer to the wall which mitigates this issue. Still not sure I want to have my ears below the tweeters though. I was told by the manufacturer that vertical dispersion is good. Where the Elacs fit in is I have a pair of Elac 407s (bookshelf) with the jet 5 tweeter (the new ones have the next evolution, the jet 6). They aren't available yet but are coming shortly. I love the HFs with the Elacs, and it's one reason I'm moving from my Revel Performa 226 BEs that have really good sound (supplemented with a REL sub) but sound a touch dry to me in the HF range. Why not just wait for the Elacs? Well, you know how it is, I'm wondering if I can do better and reviews suggest I probably can. I'm interested in any comments or experience with the Alecs and Signatures. I can have trials with both but I'll probably like them both so I may just end up with the first one ordered. So any input from the masses could help me decide.