What MMORPG game should I play?

I don't know which MMORPG I should play, I used to play Maplestory and loved it, the first time I had a level 144 bishop and 123 nightlord but they got hacked. The second time I had a level 120 mechanic and was so ahead of everyone in my level, but got hacked with 1.8b. I would still play it but I do not want to waste my time and get hacked again. I also used to play Runescape but it got hacked. I am not really into 3d games like Grand fantasia, Fiesta, Runes of magic, Perfect world etc... I tried Wonderking but it is not as good as Maplestory. Please do not tell me to play WoW because that looks addictive and I do not want to flunk school because of it.