So I invest another $500

Today I invest another $500 into Ripple and ZRX. So what do you guys think about these currencies the pros and the cons. I've been watching Ripple and it's been going between 25 and $0.30 a day today it had like a $0.40 fluctuation and ZRX looks like it's going to perform pretty good too but I would love to hear your thoughts. What do you guys think it's going to be the next big currency and why