User blog comment:KaptnKrok/How do you guys pick your champs?/@comment-3097946-20140501210243

For ranked, consider the following:

Play a champ that you're comfortable with

or play a champ that synergizes well with the team.

This will help your mentality, which is a big part of it in the first place. Anything else is just for practice.

At the end of the day, you're only looking at your performance and what you could've done and can do to improve in the future.