I think these would be...
1. Ragnarok Online, because it is the best MMORPG I have played until now. The characters are 2d and the surrounding 3D. Nevertheless I love this game and especially the characters. The variety of jobs is very big and I like the design of each class. There is always something new to discover in this game and even though I have played it for (around) 4 years now, it simply doesn't get boring.
2. Lineage II, because the 3D characters are made very well. They are really realistic and I like the fact that leveling and getting to know the world takes so long. This is a game which you can't "complete" and of course the community is huge.
3. Final Fantasy. I only played FFIX and FFX (but I want to play every other part soon) and this is really the best RPG, none MMORPG I have played. Gorgeous graphics and story. Especially the short video sequences have an extremely high-quality.
Yeah, I'm a RPG freak .