I've managed to climb up to 18th place on PvP. I just got to say I love the detail where enemies fly farther the more extra damage they took on death.
One update I think would be cool to see in the future is doing PvP with a friend. So you can invite someone to a table and do a 1v1 with them, instead of just a random person. (But obviously don't have that count towards rank, 'cause then players could cheat by playing with themselves.)