I searched around and only found one thread from mid-2014 pertaining to this topic, and seeing as how we've seen an additional 16 tracks added to the mix via Mario Kart 8 DLC since then I thought we'd revisit it.
Just to make things harder on you, I'm asking you to narrow your vote down to a single all-time favorite across every game in the series. You can nominate either a traditional racing track or a battle arena, whichever stands out to you as your personal favorite. I realize that this will be tough considering the series' pedigree for featuring memorable levels in abundance, but that just ensures that you'll really have to think before posting.
I'm not going to be tallying votes or anything (I've gotten in trouble in the past for Voting-GAF threads), so this will just be for the sake of discussion.
I'm gonna kick things off with what I'm pretty sure if my overall favorite track from any Mario Kart game:
Mount Wario (Mario Kart 8)
Man, this was really tough to narrow down. I came to this decision for a few reasons. Firstly, I love the unorthodox concept of the level. Nintendo characters racing down a snow-blanketed mountain in one continuous lap with icy turns, pitfalls, big jumps, and branching paths galore. While there are other levels in both MK8 and previous games that offer more visually appealing settings (Water Park, Piranha Plant Slide, Toad Harbor... etc.), Mount Wario edges them all out for me with its showstopper moment: riding sideways along the outside wall of a dam, snaking from boost pad to boost pad as they flow down the side of the giant edifice in rivulets. That is just pure spectacle, and it impresses me every single time I play it. Most importantly, it's one of the only times in this otherwise purely downhill track that the MK8 anti-gravity mechanic comes into play.
