ST's orpg was pretty good when you first play it.
Black Road is okay, but after you get like 2 maxed/geared chars it get's boring
TEve is bleh, no story what so ever, just mad amounts of sitting afk and killing stuff.
FFF (final fantasy forever) is a pretty cool rpg, has 4 players max and it actually takes quite a while, but it's really really old so iono what happened to it.
COT is also pretty boring once you get a char high level