A lot of things.LIke you said,the fact that there is no drama or OTT-ness.Just simple and realistic, and school masti and pranking.I LOVE LOVE LOVEEE the sizzling chemistry between KiSha and adore the sweet,natural chem of RaHi.I like the fact that there haven't been a whole lot of LLHHs or the hero catching heroine scenes, but instead a lot of meaningful conversation scenes between the couples, helping us to understand the kind of equation they have had till now.I love the humour which they,esp Piddi execute.I love the tashan chem between Kd n Ranveer.I love the subtle equations which are shown without emphasising on them,like Piddi-KD or KD and Bobby.Junglee intrigues me a lot and I'm really eager to know his mystery.All in all...I am LOVING TBP.After D3, this is the first show which has brought a josh for it from me.