To be honest you dont get that much difference in 20mm manufacturers models. I use models from seven makers in my armies and it works very well. If you want to be compatable with plastic 20mm figures then SHQ are the way to go, but their is so much choice these days. my favourite makers are... AB miniatures C P models Battlefield Miniatures Britannia Miniatures FAA miniatures SHQ Dixons But their are quite a few others around... As for 28mm then Artizan are good, but also check out Westwind Productions, Berlin or Bust 25mm range, smaller than the 28mm ranges but great animation and variety, I had a load of their Soviet Scouts! Stunning models!