One Tricking is pretty good, especially nowadays.
Is it good? Can it get you higher elo? Does it get you higher elo, because you will be able to carry the game with the champ or because you play the champ so often, that you don't even pay attention to what you do with him and you pay more attention to the game in general?
Well If you put a lot of time into a champion, you're more likely to improve at them over a lot of other champions. For instance, a one trick would know all of their capabilities and apply them in every situation accordingly, rather then say just a regular enthusiast, who may make misjudgements sometimes.
I will say its a lot easier for me to focus on a gameplay but its not because I pay more attention to the game over my champion, but rather I understand better what I can or can't do and how to manipulate a situation around my own capabilities. For instance, as an elise main (1.6 mil, but not otp) I understand my strength is early and then play around who I can get ahead to help me dominate the mid game better or carry me in the late game when I become weight/everybody gets sick of my shit and focuses me (so plan b, the next guy to steam roll). If I play someone like nocturne for example, I don't have similar game knowledge, it ain't that I'm focusing on the game its I'm focusing "when should I actually try to be useful and what opportunities am I missing that I actually could've taken if I was confident."
Do you consider OTP's as a bad players, because they can't play other champs well?
Specific to the person. There's a lot of OTP's I've met in my days that are either jackasses or simply don't know their champion throughly, argue that they're gods and everybody is wrong, and are stuck in a low tier to begin with, or feed because they didn't get who they wanted and nobody dodged when they took ghost clarity.
Then there are some that climb, are respectable, and really freaking good that they inspire you a little.
Generally, OTPs are good people, they respectfully just enjoy their champion, and if that's all they care about is their connection with a champ then good on them. If they OTP and then all chat how good they are, meh trash for all I care. Just a lot of the time, a otp can get a little over their head about their experience advantage to begin with and rub it into your face if you're trying something oddball or something you don't have as much XP on.
As for not being able to play other champs, nah thats fine. I don't agree with dumb game costing decisions like "hostaging as smite ghost nunu support to force you to dodge", but if they simply suck at other things, they're going to most likely climb faster when they play what they enjoy most and can't win everything, as long as they're not inting, they can be carried. Ironically my winrate is higher from my Elise getting picked or banned, simply because I just play safe on other stuff and let the team carry me for once.
P.S.: if anyone would recommend me some champ for the toplane, that is not completely braindead, but not very mechanical as well, something in the middle... I'd be glad.
is really fun and rewarding. She's not hard to learn but when you master her beyond her basic mechanics she's crazy. I actually really really enjoy her and she's my wing girl.
is pretty good too, I can't say much on him as I don't play him like I do camille, but he's solid ime.
eh... I wouldn't recommend it simply because irelia is an "older champ" and older champs are more likely to get changed either like xin zhao or full VGUs so all your time is wasted. At least you know newer or very popular ones won't get changed anytime soon. I'd lean away from heavily contested pro picks (as they get random nerfs even if bad in solo) and VGU qualifiers as well as new champions for the first few months since they can have weird balancing stages (basically you'll end up like kindred otps).
Its really about who you resonate with best. Don't one trick a champion for "freelo", if you're gunna master something it'll be freelo for you no matter, but at least you can master something you personally find really fun or relatable.
