My own pair of LS6. Yeah, I got them from AV123, but I would have never been able to build my own from one of Danny Richie's kits. I feel like I stole them from the company, so with all that's going on, I guess that's a good thing.
A now deceased friend had a setup that included huge Krell mono-blocks powering custom Apogee Studio Grandes. The amount invested would buy a pretty decent car. As impressive as they were, they didn't move me the way my LS6 do. They can still give me chills. I'm sure that there are better out there, but I don't need to hear them. I've got as good as I'm going to get.