Which do you like better — the Hunslet Austerities, or the USATC S100s?

No real criteria, just want to start a fun discussion.

For my personal tastes: while both classes are ugly in appearance (but rather charmingly so) -- I favour the S100, as thus being, to a Briton, ugly; and additionally, in a somewhat exotic way. Also, S100s operated during / post World War II in a, for me, fairly mind-boggling assortment of lands, besides our own: Austria, France, the Netherlands, Greece, Italy, Yugoslavia, Palestine / Israel, Iraq, Iran, and China. (Yugoslavia built some of the type new in the 1950s -- in that part of the world, designated class 62: as at a few years ago, a few remained in everyday industrial service in parts of former Yugoslavia, though I don't think this is still the case.)

"Austerities" ran in other countries besides Britain, but in nothing like the range thereof, in which their American counterparts did so.

But the USA tanks had melodious chime whistles ......