Great input from all. Every time I think I've decided, I'm pulled back onto the fence. lol
That said, I'm currently leaning toward the Alecs. Everything I read or hear suggests they are somewhat different, or maybe the better word is special, in some hard to articulate way. I think I have a better idea of what the Signatures will give me and if I buy them, they'll almost certainly stay. I'm more curious about the Alecs and if for whatever reason they don't work for me, I can send them back and get the Signatures. And I don't need the speakers to play really loudly. I tend to listen at modest volumes.
Interesting that kmcong upgraded within the Legacy family, a strong endorsement.