BurningBoiceM You have a lot of good options there!! it's difficult to choose one, so I'll pick one of each type
Movie: a werewolf boy - definitely a must watch! even though the plot may confuse some people,Song Joong Ki acting on this one makes up for any short comes it may have
K-drama:Bridal Mask - the plot is great and it has everything, romance, action, drama, revenge, not to forget it also has Joo Won!^.^
J-drama: Rich man, poor woman - this is one of my favorites j-dramas, it's realistic and cute at the same time
T-drama:MARS - is a little dark but it also has a really cute romance that makes you laugh from time to time, if you read the manga I would say is a really accurate adaptation
Well that was it...almost everything in your list that I watched was good so don't be afraid on picking anything from there ^^