Jungle if you are a masochist or have a thick hide. You will be getting flamed by your team, blamed for everything that is not in your control, and the general scape goat so they don't have to admit their errors, or that they had been out skilled. You will spend a good deal of time farming the jungle, and all the while hoping to god that your laners are not stupid enough to steal your creeps. Or worse... feed before you get enough power under your belt to go ganking. And when you do go ganking, you'll spend your first ninety something attempts bashing your face in with your keyboard because... despite pinging constantly and hiding in the bush for the past ten minutes... when you finally do make your move, there's no follow up... resulting in wasted time. Oh... and that laner will then later complain about you not ganking their lane.
Top lane if you'd like a less stressful version of Mid, without champions who snow ball based on levels alone. It's all solo, and pretty much all of your melee champions will be up here with a few odd balls from time to time. Ganks will usually come in only one direction, and occasionally you will be surprised from behind if you are unlucky and have Top-side spawn. This is a friendly competition of poke and kill. Where going all in too soon will get you killed. But at least it is very possible to make a come back, even after three deaths.
Mid lane if you just want to establish your dominance and stroke your ego. You're supposed to have your jungler's back in case he's been ambushed in his own jungle or, if he's been found in the enemy's jungle. But you never do. Instead you'll probably just flame him, see the masochist bit. This lane is where all your snow bally and hard carry champions go. You will normally be several levels above the rest of the players... if you don't feed. If the enemy kills you two times, you better hope your Jungler is capable of shutting him down a few times, because there will be no recovery.
Bot Lane if you love auto attack marksman. And you think the word ADC means that you are supposed to carry the game alone. This role tends to be very cut throat, and revolves around blood thirsty heathans who are being held back by a fraying leash. This leash is held by their supports who are trying desperately to keep their pets from being euthanized on an untimely noticed. This role is for people who have some massive egos, and are not ready to own up to their short comings... and instead will push all the blame onto their support when in the laning phase... and later the entire team when the roaming starts.
Support. The least selfish role in the entire game, and the only form of recognition recieved is given by the game at the end of the match. Not only are you tasked with looking after a rabid animal with absolutely no form of self preservation instincts in their geology, you are also tasked with not taking any form of CS or decent amount of income to buy your expensive as hell support items. But you are constantly blamed and flamed by this creature when you die to keep him alive, or let him die for a mistake you can not fix. And boy will they let you hear it when you don't get a sight stone, because a sight stone is an item that only a support is allowed to buy for some reason. While you do not often abandon your animal, your animal will abandon you to go roam to other lanes because he thinks you are bad. This role is often mistaken to be where the unskilled players go. But this is probably one of the hardest, and most boring roles to do in the entire game. Not only are you responsible for peeling, and correcting mistakes. But you're required to analyze the situation, and adjust pre-emptively. You might as well blow your brains out if your team chases a single enemy all the way to their fountain before the second turret is ever down. Oh... and you will occasionally deal with a top lane Riven main who will throw a bitch fit for you not running up to her lane from bot lane to ward a bush.