Anti-mirror match option
I don't know about you guys, but I really hate mirror matches, especially when I have to lane against the same champion. This is then also the reason I mostly play draft, but with draft you barely get your prefered role and your champions get banned or picked before you can. Well then you have teambuilder so you can play what you want, where you want, but the mirror match is still there.
What I'm proposing is just a box you can mark if you don't want a mirror match in team builder. Team builder will then search for a match where your teams champs are not in. This will of course increase the waiting time, but I think a lot of people are willing to sacrifice a little bit of time extra. Leave your thoughts in the comments down below.