I have a mix of Happy Hineys and Fuzzi Bunz. While I am in no way an aplix fan I prefer the fit of the Happy Hineys. Joe wears a medium now and to be fair I never had any small Fuzzi Bunz. The small Happy Hineys fit him well from about 2 weeks on, though I am sure they would have fit him better before then.
I am not really picky on inserts, as long as it is hemp usually. I have some Joey Bunz, Punkin Butt inserts and a handful of WAHM inserts. Right now I am using some prefolds if I run short because I have more pockets than inserts at the moment.