It's not exactly a prominent aspect of a 99% of the fighters arsenals.
I really, REALLY like seeing slick head movement. Silva/Aldo and Pearson before he became a brawler (WHY WHY WHY).
Judo throws and slick, fast moving BJJ.
Yeah but considering how the question was asked I just figured any style we have seen in the cage qualifies. How can anyone not enjoy watching that style?