It's hard to pinpoint a single 'strongest stand' in Jojo manga. Different stands have unique abilities and advantages. For example, The World has the power to stop time, which gives it a significant edge in many situations.
The JoJo manga is mainly in black and white. Colored versions exist but are not the norm. Sometimes, colored illustrations are done for promotional purposes or by fans.
I think it's great. The characters are memorable, the plot is full of twists and turns, and the battles are epic. It's a manga that stands out from the crowd.
It depends on personal preferences. Some consider Jojo to be peak fiction for its unique style and engaging storylines. Others may have different opinions.