I prefer and almost solely use GW 2nd ed minis. Therefore a 2nd ed human lineman represents the archtype of a size ST3.
However(!), the 2nd ed minis didn't really represent size ST4 on any minis. All the chaos minis were standard human size and the orc blockers were same size as the orc blitzers.
So(!), to me a miniature like the 3rd ed Lord Borak is a good size ST4 when compared to my 2nd ed size ST3. Lord Borak is approximately the same size as Ramtut III who is therefore an excellent sized mummy for me.
