I recently chose to build a Cub kit from my stash. The choice was between a Sig 1/6 Cub and a Carl Goldberg Anniversary Cub. One look at the Goldberg kit and I immediately sold it off. That was some of the worst die crunching I've ever seen. I just couldn't see myself remaking all of the parts. The Sig Cub is turning out nicely but it really needs an updated manual.
I have a Sig Kwik Built P-51 still in process. I've read good things about flight characteristics but bad things about the build. I used the plastic fuse shells as molds to make a fiber glass fuselage, which I'm hoping will ease the building problems on this bird.
Best kit I've run across is the BTE Venture. This Bruce Tharpe kit was so beautiful in parts form, it was almost a shame to build it. It has made all other kits look pretty second rate. Although a recently acquired Marutaka P-61 kit looks pretty darn good! Building it may be a different story though.
Rick