Two lathes, first is a 1929 Ideal 3-1/2inch short bed Type A inherited from my grandfather, flat belt drive, back gear, screw cutting, handle on leadscrew, t-slotted cross slide and top slide, lever action tailstock lock, 10mm spindle bore, threaded spindle nose, 1MT spindle and tailstock, low speed 25RPM, top speed 900RPM. Maybe not as strong or as accurate as newer machines, and the headstock bearings are now a bit sloppy, but it is very easy to use for a beginner, especially changing speeds or swapping chucks, and very forgiving if the belt tension is kept low enough. I love using it, and not just because of its sentimental value.
Second is a 2015 Sieg C6. In comparison with the Ideal it has very few features (no back gear, no handwheel on leadscrew, no lever tailstock, no t-slots on cross slide or top slide, low speed 125RPM, top speed 2000RPM). It's a pain to change speeds, but tough as guts and great for larger jobs that the Ideal would just faint at.