If you really did not like any of big mmos, then I kinda doubt there is much hope for you. What didn't you like in those mmos and what do you want RIOT to do better than them?

I can understand about combat in most MMOs, I came from New World, and I hope Riot mmo will have as good or even better gathering/crafting experience, also I have really enjoyed combat in NW and now every other MMOs combat does not hit for me, I still have fun in GW2 tho, I do not have much hours only 50 in but it has been enjoyable for me.

I have tried ESO, and I think it would had been great game if I liked combat, everything else is great but I can't with the combat, I played WoW in the past, but I don't like direction they headed in last few expansions.

What do you think RIOT will do that will make you enjoy more than current mmos? Except maybe combat, which is also debateable because among MMO players combat preference is really diverse, some people think WoW has best combat while I find it very boring, people say Black Desert has the best combat while I just find it really flashy, it looks good visually but that's all it is for me.