I think one of things cause classes balance and fun is about weapon and jewel. You can see in maxko now, everyone use only one kind of ring: ROV, because it's much better compare to other, warrior use it, rouge use it,mage.... There should be typical rings for classes like ROL,ROC,ROM, or ROF hero valor...
That's jewel, what about weapon, here if you are a warrior or BP, 99.999% you will choose hero sword to pk same, for other classes, not so hard to choose a weapon that better than other, and result is everyone use a same thing xD. That's make people look like each other like soaps in a factory

RedBuIl about jewel you are right no one never change rings , but about BP weapon not , many BP use c sword , or sometimes H mace, I use 3 of them , but I like the idea of upgrading jewel to +5 like on USKO , maybe bdw earring should be upgradeble or something
Maybe on expansion we should get second medal , but with different stats , for example +30 to all stats , but with no def and weapon def thats only suggestion

We already fix it in expansion but how you will need wait and see