Without any hesitation: love me if you dare!
All time : Return of the condor hero 2006
Currently : When a Snail Falls in Love
Legend of Zhen Huan
Boss and Me
Cuo Dian Yuan Yang 
Boss and Me
Love Me if You Dare
The Princess Wei Young
Go Princess Go
Love O2O
And I just finished When a Snail Falls in Love :)
When a Snail Falls in Love. And probably for while, it's n°2 on my all-time favorites.
I thought this was a favorite Chinese drama thread...People naming Taiwan, Kdramas and etc LOL....Anyway my favorite C-Dramas are
Cruel Romance
novoland: the castle in the sky
Boss And Me
Ohhh yeah and The Sound of the desert
Lady &  lair
cruel romance
love me if you dare
boss & me
love o2o
when a snail falls in love
ode to joy
Journey of the flower
Princess of wei young
I barely watched chinese dramas (such a shame because it's so great but I'll definitely continue it!) so I would say ; love o2o. 
Love O2O and Boss & Me definitely!
They are so cute and I like how they don't have too much drama in them.
I like the type of dramas that don't have major plot twists.
I've watched a lot of modern mainland dramas and I have to say 2016 has been a big improvement!

My personal favorites:
Boss & Me (2014)
Far Away Love (2016)
Remembering Lichuan (2016)
With You (2016)
Love me if you dare!