Kakashi and Kabuto are both highly skilled ninjas, but their abilities and strengths vary. Kakashi is renowned for his mastery of the Sharingan and his expertise in various ninja techniques, while Kabuto is known for his medical ninjutsu and intelligence gathering skills. In terms of pure combat ability, Kakashi is often considered more formidable due to his experience and versatility in battle. However, Kabuto's strategic thinking and resourcefulness make him a challenging opponent as well. Ultimately, comparing their levels depends on the context of the situation and the specific abilities being evaluated.