I wonder?????
I pretty much have keep all my champs at a constant ready to rank up, I rank up who I play better with over anything else. I'm thrownbreaker with only rank 1 7*s I have 2 maxed out 6* witch are not my biggest champions. I don't think it matters how our who you rank up as long as you keep climbing up. I enjoy playing this game it doesn't matter to me where my prestige is at. As long as I keep playing and ranking up the champs that I like I know my prestige is growing. So why is everyone else so bent out of shape?