For a kitchen, you want to be able to use a dimmer.

Therefore I suggest halogen.

I also suggest the 120 Volt. The low voltage version needs a
transformer that can hum, and some of them are switching power supplies
that can cause radio and TV interferecne. The 120V versions don't have
these problems, but the bulbs use a finer filamanet and are not as
rugged. If you use them with a dimmer and keep them dimmed most of the
time and there is not too much vibration, they will be fine.

Mark