The Queen of SOP (2012)

When I started watching SOP, I was instantly reminded of Fated to Love You. The drama gives off a similar feeling. Although this could be mostly due to Joe Chen as she is the lead in both.

Both are love triangles and the main female character is strong in both dramas. Though Hana Yori Dango is a school drama, Queen of SOP is similar to it with a good guy vs bad boy thing. In both dramas the main couple has to overcome a lot of obstacles in their relationship to stay together. However, both have different endings.

Both shows have a strong female lead with two male pursuers. I don't want to give away the story but I will say that the first guy doesn't like her until the second one walks in. She grows stronger as the show progresses... which I love.

both have a girl who is encouraged by a guy who mail her on the net and hides his her identity from her in person

both have slow-building romances that start from friendship. In both the dramas, the female lead is working in an office and striving hard. Both male leads are super sweet and nice. Not jerks.

Same feel, same mix of business and romance, though the balance was much better in The Queen of SOP.
Both involve strong capable female lead, a caring male lead and a love triangle (unfortunately...)
Warning : Best Time's ending was extremely off-putting to me (and to a lot of other people as well I guess).

Same kind of feel in both dramas. The female starts of small and weak and gets stronger towards the end. Both are designers.