I have been asked numerous times what's the difference between Copics and Prismas! Well...I honestly don't know since I've never used Copics...I'm a faithful user of Prismas! Now don't go casting your stones...this is my personal choice. Thanks to THIS post from Maria Bell of Stamping Inspirations...I chose to go with Prismas. When it comes to shopping for quality coloring mediums...I try to get what's the best...but I'm also thrifty. Living in California is teaching me to save as much as I can...although sometimes I don't hear it when it comes to buying stamps...lol...but that's a whole different story! :P Basically...I've seen many times that there's not much of a difference between Copics and Prismas since they are both alcohol based...it just has to do how you use them...in other words...PRACTICE PRACTICE PRACTICE! So...you be the judge of what YOU think is best for you! As for me...I'm sticking with my Prismas! ;) Thanks! I hope this was helpful to you!