RE: Best kit ever?
To be honest, at any given time there aren't more than a half dozen kits that I really lust over. At the moment there might be 2 kits from Glenn Torrence, a couple from Proctor, and two or three from CD ScaleDesigns. There are probably another half dozen out there that I'm not aware of.
Building the Flair Puppeteer has been a nice break between more serious scale projects, but I've really gotten to that point that I just don't see the point of putting any kind of serious effort into a "sport scale" model. I think Dave Platt has used the expression: "It's like putting a dress on a pig." I've never liked "pure sport" models (i.e. "fantasy aircraft") and can't imagine using any of my limited building time gluing together a non-scale model. But then there are really so few actually scale kits. Most kit manufacturers take major liberties in the name of marketability.
So in a world of kits, there are really only a handful that I'd honestly want to build.