The best 3150 champion for me?

This is my third LoL account, and there are many champions for 3150 ip i really like. I really enjoy middle lane but right now i have a decent amount of mid laners for level 15, and i like jungle too. There's are my options, Leblanc I'm very good with and is a great mid. Nidalee, I've never really played but nidalee jungle seems really fun and cool. Shaco, hell of fun and a great jungler* use to main him and leblanc. There's also katarina and akali. With all this what do you guys think the best champion is for me out of all these?