Hello! I apologize if the many synonyms at the start of they annoyed you. However what champion has provided you with the most dynamic playstyle? A type of gameplay that is different and varies according to the champs you are against. Basically a non-repetitive champion. Been playing alot of league and got the chance to try a few champs but I want your guys opinion and comments! Cheers!
Oh...also Azir. He requires so much micro to play to his full potential that every game with him feels great (at least to me).
and
Because it gives me a chance to get back at the trolls without actually saying anything in chat.
In seriousness, jarvan is pretty fun because of his flexibility and ability to set up decent scenarios for your teammates even when you're behind.
Kha'Zix. You have to pick your opportunity and it has to be exact. so squishy and cannot really team fight, so you really have to make smart choices while playin Kha hes a perfect example how everyone assasin should be, high damage output single target, squishy af team
gang plank can be built a million different ways but his game play doesn't necessarily shift too much with what you build on him
Yasuo
personally I don't think a single champion fits your description of what you seek.
Ezreal or kayle maybe. From what the OP is requesting it seems like somebody versatile can be played a number of ways.
I would say my main champ Fiora.
Depending on what champ my enemy laner picks or how he uses that champ, I can predict what combo I should use when he tries to poke me or face me head on.
Example: If I went against Master Yi
The Master Yi likes to poke with his Alpha Strike(Q) and run a little away a little. I would counter poke and use my Dash(Q) one time to catch up to him, basic attack him once then Q again. If he decides to turn around and fight back a little, I can do the same combo but after my 2nd Q I could activate Riposte(W) and parry his next basic attack while basic attacking him. If I were to fight him head on while at low health, but he was at half health; I would start with my Ultimate Blade Waltz, Ignite him while in the untargetable state, and then finish him off with my Q.
This combo would also work against Gankplank, but I would wait for the Gankplank to shoot at me; when he does shoot at me I would use my Riposte(W) and proceed with the rest of my combo.
Example: If I went against a Riven (sort of a counter to Fiora)
The Riven likes to go all in with her pokes since she knows she doesn't need to use mana. At level 1 she would do her usual Q, Basic, Q, Basic, and then Q, basic again. During that Level 1 combo, I could run towards my side of the minions and use them as a shield, and an offensive power. While she is attacking me and taking minion aggro, I could use my Q in rapid succession, usually ending with me having more health and the Riven having less than half. When she has all her abilities and can do a full combo. I can wait for her to use her Q to get close to me, then I can Riposte(W) knowing she will stun me so I can't get away. Then I can proceed to use my combo on her, and if I know I can kill her I would quickly do the rest of my combo (Usuaully excluding Riposte(W)) Q,E,Basic, Q, Ultimate and ignite and basic attack a the same time.
tl;dr Fiora combos are always fun since I know multiple combos I can use against certain play styles of my enemy laner. I can even wait a little in the middle of combos depending on where I am on the map. Kind of a rant since people I kill with Fiora sometimes say press R to win or that Fiora is very broken (I'm looking at you Auto Attack based champions)
I never get bored playing her because I can build her differently every game.
Tank The heal on her R+W (heals for 20% of her missing health instantly, then another 20% if the tether isn't broken) allows to her to pull of great baits, act as a teamfight initiator, or pin down a target with the root on her W; the passive from Spirit Visage increases the health regen even further. Karma can stay relevant all game while building no AP because her kit is packed with utility. She can kite or peel exceptionally well with her low cooldown Q in conjunction with Iceborn Gauntlet, in addition to the teamwide shield and MS boost on her R+E. With 40% CDR, all of her abilities take less than six seconds to refresh.
Top lane tank: 
Tanky support: 
Bruiser Works top or mid lane. Great if you don't want to build glass cannon, but still want to deal respectable damage and provide teamwide utility.
AP Carry If I go this route, I always build Lich Bane. With 40% CDR, her Q is on a 3 second cooldown. With about 600 AP, Karma can deal 300 magic damage auto attacks every 3 seconds.
is really satisfying when you land a max distance spear and snipe someone at half health.
LeBlanc is probably top of my list (the jump shennigans you can do with W + R are crazy!),
I'd also recommend Jarvan IV (highly mobile, can be an assassin, bruiser, or tank, and just feels great to use), Fizz (your insane amount of mobility just makes him fun, even if your playstyle is "kill the squishy"), Katarina (see Fizz: those assists can make you go on a crazy jumping spree), and perhaps Viktor (his kit is fun and rather unique, with huge opportunities to zone opponents into terrible positions).
