I'd come back as a giant pacific octopus because they're fucking awesome.
So you die and in reality should turn into worm, bug, and plant food. Those plants, bugs, and worms get consumed by something larger and the next larger consumes it. Your "potential energy" as a food source, just fed whatever and eventually it might be black panther.
That's my version of reincarnation.
You wind up eating a lot of turtles, snakes and caymans, no fruits and vegetables in your diet at all - just the dietary restrictions would kill it for me. That's said, my favourite animal is the Snowy Owl, so eating lemmings and field mice and squirrels - then hawking up the remains and spitting them out in pellet form.
Reincarnation is more fun than the old heaven and hell dichotomy but it has its faults too.