Ichigo's speed in the manga is hard to quantify exactly. It depends on various factors like his state of mind, the nature of the enemy, and the level of his spiritual power. But one thing's for sure, he's often shown to be very swift when needed.
Ichigo is really powerful in the manga. His power levels increase as the story progresses, and he shows great courage and fighting spirit in battles, making him a force to be reckoned with.
Yes. Ichigo's hard work, determination, and the accumulation of power and experience allow him to become a captain in the manga. It's a significant milestone in his story arc.
It's hard to say for sure. Both Ichigo and Naruto are incredibly powerful in their own ways, and it would depend on various factors like their current power levels and the circumstances of the battle.