In A Midsummer Night's Dream, which scenes contain the most dramatic elements (movement, props, costume)?

The answer to this question is not straightforward, because every staging of the play is different. Some productions are quite spare and minimalistic, using only a bare stage and a small collection of hand props, relying on the words of the play, and sometimes creative lighting and costume, to evoke atmosphere, while other productions are more lush, using set design as an integral element. 

The scenes set in the forest are often staged with limited scenery; often just lighting creates the effect of sunlight through leaves and perhaps a backdrop of trees. The purple flower and potion can be mimed or used as small hand props. The scene that is often most elaborately staged is the final wedding, as it has the most inherent possibility for elaborate costumes and spectacle.

For movement, many directors imagine the fairy world as one that is choreographed and contains dance-like elements. Puck's character is often performed in an acrobatic style and the fairy characters distinguished from mere humans by their graceful or stylized movements. The rustics are also often characterized by the use of physical comedy, an exaggerated slapstick that differs as much from the ordinary movement of the young lovers in its staged clumsiness as the fairies differ from ordinary mortals in their grace and coordination.