I am looking to replace my drafty old steel entry door with either a Pella or Reliabilt fiberglass door. I like the style of the Reliabilt door more, but the Pella is almost twice the cost of the Reliabilt, which has me concerned that the Reliabilt is an inferior product. Can anyone tell me the different between the Pella and Reliabilt smooth fiberglass entry doors?

I am also replacing my wood french doors (20+ years old and were not always kept up with). I am looking at either fiberglass sliding or french doors. Does anyone have any recommendations? Is fiberglass better than vinyl and aluminum?