Which phrase correctly compares skills in a sentence: As a carpenter, he has better skills than ___?

The phrase "anyone else" is appropriate for completing the sentence because it maintains the comparative structure and provides clarity in making the comparison. In this context, the comparison is being made specifically to other individuals who also possess skills. "Anyone else" implies that among all others, this carpenter's skills stand out, highlighting his superiority in a more defined way.

Other answer choices could lead to ambiguity or a less precise comparison. For example, "anyone" lacks the specificity that "anyone else" provides since it could suggest a broader comparison without the implication of exclusivity. Similarly, "everyone" and "everyone else" introduce a collective notion, which could skew the focus of the individual comparison intended in the sentence. Thus, "anyone else" is the most effective choice for a clear and concise comparison of skills.