here are the champs I now have and my impression
Alistar, good at top and nice head butt but I don't play him much
Annie, Great for the middle and alright. The bear can come in handy by does not seem as controllable as what the bots can do. Just so so
Ash, great for bottom and haven't played her in a while. People seem to prefer bot and I am more than happy to let them have it
Garen, Good at top but rather boring to use for me
master yi, fun to use and good top and bottom. I need to use it better however because he is far from being my best
Nunu, just started with him but simply awesome jungler and down the middle. Had 7 kills in a row with him today and a triple kill. Use him to speed up the ADC with Sona provide health support and it's pretty incredible. His buffs make him a natural for the jungle. His ultimate with the right gear is crazy good
Soraka, haven't really used her.
Tristana, my favorite range one. Good in the middle. Need to figure out the gear for her better
Trydamere, he's worth trying. Amazing on top or in a solo lane with blood lust and lots of melee buff. Had a few real good games with him
Udyr, good jungler and top. Kind of slow but can be fun. Trydamere, nunu and warwick are more fun and preferred however
Warwick, favorite jungler. He's so hardy in the jungle that it takes no time at all to get to the ultimate. Just put some armor on him and you don't even need potions. I tend to play him a lot if the rotation is not very interesting.
Had Jarvan, it was a disappointment. I was hoping he would be as good as what I have seen but he hasn't worked for me that well.
I did like Voldibear and might get him. Wasn't great with him but he was fun.
I keep seeing Tommy with Ziggs and that seems like a lot of fun too, I might try to get him as well.
Anyways, Nunu, Warwick and Trydamere will probably get the bulk of my playing time for the next little while