Of my 3 irons, my favorite for pressing as I piece is an old iron (circa 1945) that I found in a thrift store several years ago. It weighs a ton, but does a beautiful job. With steam, I tend to iron rather than "press" - not so with the heavy dry iron, it's all I can do to lift it up and down LOL
PS Steam tends to distort the fabric if you're not careful when pressing/ironing.