Do remember something big when it comes to balance.
When it comes to champion balance,
LCS>winrates and stats from a database>anecdotes and personal experiences.
LCS is always considered first as long as it applies, to certain champions it does not (think
ETC).
Then winrates from a database, perferably in higher elos, and personal experiences are almost never considered. Except for the playtester team of course.
Remember this when complaining about X champion being OP and why RIOT has not nerfed them yet.
