1. Redmond95
Redmond95 is a fixed look engine with no style or additional configurations needed. It was originally created for the purpose of being able to make GTK1.2 and GNOME a little more like the Windows 95/98 Operating Systems for those who were used to and more comfortable with the look.
While it is not an exact mimic it is still often used in conjunction with other engines for custom themes (for instance many themes use the Redmond95 checkbox styles in conjunction with the ../ThinIceEngine).