People preferred being burnt at the stake.

Why surely you'd prefer a hot stake to a cold chop?

After its adoption, the device remained France's standard method of judicial execution until the abolition of capital punishment in 1981.[3] The last person to be executed in France was Hamida Djandoubi, who was guillotined on 10 September 1977.[4]

Nightmare fuel:

The question of consciousness or awareness following decapitation remained a topic of discussion during the guillotine's use.

The following report was written by Dr. Beaurieux, who observed the head of executed prisoner Henri Languille, on 28 June 1905:

Here, then, is what I was able to note immediately after the decapitation: the eyelids and lips of the guillotined man worked in irregularly rhythmic contractions for about five or six seconds. This phenomenon has been remarked by all those finding themselves in the same conditions as myself for observing what happens after the severing of the neck ...

I waited for several seconds. The spasmodic movements ceased. [...] It was then that I called in a strong, sharp voice: "Languille!" I saw the eyelids slowly lift up, without any spasmodic contractions – I insist advisedly on this peculiarity – but with an even movement, quite distinct and normal, such as happens in everyday life, with people awakened or torn from their thoughts.

Next Languille's eyes very definitely fixed themselves on mine and the pupils focused themselves. I was not, then, dealing with the sort of vague dull look without any expression, that can be observed any day in dying people to whom one speaks: I was dealing with undeniably living eyes which were looking at me. After several seconds, the eyelids closed again [...].

It was at that point that I called out again and, once more, without any spasm, slowly, the eyelids lifted and undeniably living eyes fixed themselves on mine with perhaps even more penetration than the first time. Then there was a further closing of the eyelids, but now less complete. I attempted the effect of a third call; there was no further movement – and the eyes took on the glazed look which they have in the dead.[46][47]