supercard vs r4

which is better and worth the price???? i have heard that there were 2 different *good* types of chips and was wondering which one is better??

R4 is better. Some people say that M3 Simply and R4 are the same, and people say that CycloDS and Supercard is the same. Also, there's a lot of topics just like this.

R4 is better, because I ahve it :)