Minerva McGonagall:
* Strengths:
* Exceptional Transfiguration: She is arguably the best Transfiguration teacher in the world, known for her mastery of this branch of magic.
* Skilled Duellist: She fought bravely against Voldemort and other Death Eaters on multiple occasions.
* Strong Willpower: She is known for her unwavering commitment to Hogwarts and her loyalty to Dumbledore.
* Weaknesses:
* Not as diverse: We don't see her use many other branches of magic, suggesting she might not be as skilled in areas beyond Transfiguration.
* More defensive: She seems to focus on defense and protection, rather than offensive magic, though this could be a personal preference.
Amelia Bones:
* Strengths:
* Head of the Department of Magical Law Enforcement: This suggests a strong understanding of complex magical laws and regulations.
* Fearless Leader: She was willing to stand up to Voldemort and the Death Eaters, even in the face of immense danger.
* Impressive Duellist: She was able to hold her own against powerful Death Eaters, even though she was outnumbered.
* Weaknesses:
* Limited Magical Displays: We see her use magic primarily in the context of law enforcement and duelling, not in a broader range of magical applications.
* Tragic Fate: Her death at the hands of Death Eaters suggests a vulnerability, although this doesn't necessarily reflect her magical power.
Conclusion:
Both McGonagall and Bones are incredibly powerful witches, each with their own strengths and weaknesses. Ultimately, their power is difficult to compare directly. McGonagall's mastery of Transfiguration and her consistent brilliance in her field are notable, while Bones' courage and leadership within the Ministry of Magic are equally impressive. It's a matter of individual perspective and what aspects of magical power are valued most.