Should I champ my 5 stars?

dxanders Posts: 98 Match Maker

Up until now, I've been firmly in 4 star territory (Polaris+rocket+Juggs mostly) but after a bunch of pulls from the fan faves store, I now have shang, okoye, and thor all maxed out with plenty of iso to champ them. Is that going to throw off my balance, or should I just go ahead and push them all to champions?