>>535391434
What's your goals anon :?
If you're trying to climb, you want to focus on two roles, and at max one to three champions for your main role, less for your secondary role. Then you pick the champions you genuinely have the most fun on consistently, rather than looking for highs.
If you're playing 4fun then do whatever the heck you want, and don't let other people define how you play League o Legends.
OTPing will help you learn a lot of match ups, and almost eliminates getting counter picked once you're comfortable on them. Pocket picks imo are the ones who need a lot of conditions to line up for them to even be worth it, then you can finally pick them, like Renata and Taric for me.