Prezi and Pow toons

After reading someone else's post, I explored Pow Toons.  I would like my students to make book trailers and I think this site would be excellent in aiding them in this process.  I have also explored prezi and it is relatively easy as well.  I have made one prezi in my life and it can be frustrating at times trying to get the order correct!  Some of my kids have used Prezi, but most prefer to still use powerpoint just because it is more familiar to them.  

Thanks for the suggestion about Pow Toons.  I also would like to try book trailers with students, so will go back and look into this site.  I have never used Prezi, but have used Google docs presentation program.  Are they similar?