There should be a "Favourite" tab in champion select next to the other class icons.

This would make it so much easier to browse through your champion pool because you wouldn't have to go through everything. It'd also help those who are indecisive and have big champion pools or just a lot of champions that they want to play. Doing this shouldn't be hard since there's already a way to sort champions and stuff, but it would make champion select so much smoother and better for us.