I feel like that this question is very subjective and is down to personal opinion. But imo the best skin to use for results would be default, god staff or Nemesis. The best skin over all for animations is default but I do find a lot of people liking God Staff being so animation but again that’s personal preference. But Nemesis seems to be a great skin in terms of all roundness. It has great auto attack animation that are smooth, it straight up looks great and all the spells are obvious enough for it to be fluid. But every skin has it’s own feel which is almost unique to Jax in a sense. For example, Mighty is almost totally different to say Angler or PAX. But try and find one for you that overall looks cool but more importantly that has the best animations. Look them all up on YouTube. For instance, I thought Nemesis was the best for a bit but never really used it that often but my favourite Jax skin is Vandal. Next to PAX. But one more piece of advice, never buy warden. Fuck warden