Order the criteria for Halter horse evaluation from most important to least important.

The chosen answer prioritizes the criteria for Halter horse evaluation effectively by placing balance at the top, which is crucial for a horse's overall appearance and symmetry. A well-balanced horse gives an impression of strength and attractiveness, essential qualities in Halter classes.

Following balance, structural correctness is emphasized as the next most important criterion. This involves the horse's conformation and alignment, which affect its ability to move efficiently and perform well. Structural correctness aids in assessing whether the horse is built to withstand the rigors of training and competition, making it vital for evaluation.

Quality comes in third, highlighting the refinement and breed characteristics of the horse. Quality refers to the horse's overall desirable traits, such as coat, head, and other fine features that contribute to its breed standard. This characteristic is significant but comes after ensuring the horse is balanced and structurally sound.

Lastly, muscling is placed at the bottom of the list. While important for showing athleticism and the potential for performance, it is considered less critical in the Halter evaluation context where the horse is primarily judged on appearance rather than functional ability.

The prioritization of these criteria reflects the standards within the Halter horse evaluation framework, which aims to judge the horse's conformation and aesthetic qualities first