Van's fiber glass
I'm about to finish a RV9. Van makes a great airplane. I will likely build another, but I will not buy his fiber glass parts.
The tail intersection fairing was so bad that I almost had to completely reshape it and will likely replace it after I'm flying. I would have done a better job with clay building my own even as a first time builder.
I have really appreciated the James cowl and pants as well as their phlynum.
Fairings-etc makes some nice leg fairings.
Affordable panels does a great job as well.