B737
By the way, I recently did a couple of hours in the BA 737/400 sim, with a lovely young lady as tutor - her day job is First Officer on the 747's. Based ourselves at East Midlands and did ever tougher circuits. The final one was 1km viz, 500' cloudbase, turbulence and a 17kt crosswind.
Whilst doing the IMC course, and did many ILS approaches, but this was truly awesome - made me sweat a bit, but got it in!!