When i started to play "lol" I coulden't choose a champion because they look al great So i listen to my friends and gived my some advice But my real question is : wich champion should a beginner use ( i daught on a cheap strong champion )
( sorry for my bad english )
Garden is an easy start as well as any adc such as Ashe and jinx
dunno why this is in memes and games,
But it's really hard to narrow down what champion is good for beginners. There are a lot of beginner friendly champions, but higher mechanic champions often suit more playstyles. It's really a matter of preference, what type of character design do you like? I'd pick that champion, and start practicing it. Yes mechanics may be bad for beginners, but the quicker you start, the faster you learn how to handle these types of champs.
When I started lol, My ignitial eye catcher was 
as the character design caught my eye. It took me forever to get good with her, but the payoff when I finally did get good with her was worth it. Since she's high mechanic, whenever I try a new champion they seem super easy for me to use, I just need to see another person using it ingame and I can instantly copy that champion.
It's really your playstyle, There are a lot of very low mechanic and easy champions you can use (yi, garen, lux, soraka) and there are a lot of pro mechanic champions that need tons of practice, months even to master (azir, lee sin, kalista, yasuo)
It's really your preference. Play what you think is cool and feels right, but good beginner champs like garen and yi are pretty cakewalk if you just want something mindlessly easy to use. Decide what you want to "main" and go with that. Just use it in bots for awhile first.
Top: 
ADC: 
Support: 
Mid: 
Garen - Spin to Win and fun as all get out to just charge in balls to the walls 0 craps given screaming "DEMACIA!" while also being fairly easy.
{{champion:22} Ashe - Easy champ able to kite(attack and run, or just keep enemies off of you in general) without even trying and deals significant damage.
Kha'zix - Point-and-click Q along with a passive that takes advantage of people being away from their allies, which a lot of people in low level do. Speaking of which, tip: Stay with your team, don't get greedy and go off alone.
Master Yi 
Xin Zhao 
Jax 
Tryndamere Warwick - All AA-Focused(meaning they just hit you, don't need abilities in lower levels. AA stands for auto-attack) and fairly strong while being easy.
Singed - Just run from people who try to chase you and kill them. Simple as that.
Kayle - AA-focused while having a heal and movement speed boost, an ultimate that makes you invincible for a couple seconds, and a slow.
Heimerdinger - He places turrets and spams his emotes. Imagine putting down turrets and going to make dinner then coming back to winning the game. That's him in low levels.
Dr. Mundo - Like Garen, he's tanky, he screams "MUNDO!" all the time, and he charges in head-first without a care in the world.
Teemo - He dominates the lane phase. He just pokes the enemy, blinds them when they go in so their AA's do nothing, pokes some more, places exploding mushrooms around the map and gets kills and assists... and yeah. Honestly everything is point and click so all you have to learn to do is kite a little and know where to put his mushrooms.
Rammus - You literally just run into a fight head-on and kill enemies by having them hit you. Its hilarious, fun, and easy at the same time. Plus, he only ever says one word. "Okay." "Uhuh." "Alright." "Yup."
Vladimir - Point-and-click health drain Q ability. He just steals health from the enemy and regenerates his own. His E ability deals damage to everyone within a small range of him and the more he uses it in quick succession the more damage it does and his Q and any spell vamp(which heals you for damaging with abilities) healing is increased. He can also dodge enemy attacks with his W which makes him untargettable, and he gets tanky by building damage and deals damage by building tank. He also has no mana but instead uses his health which is quickly healed by his Q ability.
Champs to avoid until you get more experienced:
Azir - Requires a lot of micromanaging as well as learning to kite effectively and learn his combos.
Bard - He can easily screw over your team just as easily as the enemy, meaning you should learn more about the game before you try this guy.
Ekko - He may seem easy enough from the outside, but its hard to land his stun and his ultimate as well as time them both right, and he has little to no escape when he goes in besides his ultimate and his passive movement speed boost.
Ezreal - Skillshots. Literally everything in this guy's kit besides his AA's and his blink(which is still anywhere and not a target, only the damage that comes out when he blinks is automated)
Kalista - Everything about her screams "EASY," but when you get into playing her, her passive reduces her AA damage in replacement for jumping whenever you AA, but its hard to learn and control especially for new players.
Lee Sin - This guy is all about combos. He's easy enough to get when you've gotten a good feel of the game, because although he has a high skill floor, his skill ceiling is quite low.(As in, he takes a lot to learn at first, but when you do there isn't much else to know)
Orianna - Her ball moves so slow and landing things with it can be hard for even someone used to the game.
Whatever the heck you want to play! Don't let other people tell you what to play!
When I first started this game my friends wanted to give me 
because they thought it would fit with my nickname, "Paladin". You wanna know who I wanted to play?
I took one look at her splash and knew I wanted to play her regardless of my skill level. I didn't even know how her kit worked! But it didn't matter, I wanted Fiora and I started saving up for her. My friends tried to discourage me from getting her, saying that I needed a bit more skill before I looked at more difficult champions. I flipped them the bird and ignored all of their advice. You wanna know what happened once I got her?
I sucked.
I sucked really hard.
But that's how you get better at this game! By sucking and learning from your mistakes. Eventually I got better with her, and my friends sent me top lane constantly because they knew how good I became with her.
In summary, don't let what other people say dictate to you how to play the game. League of Legends is a game, and games are about having fun even if you suck at them!
Who knows, maybe you'll eventually stop sucking and "git gud."
