Oh boy you ask that question and you'll get a different answer from each person. It's all about the high you want man. If you want some couchlock and it too look funky get twilight. If you want a soaring clear headed high then you could get swazi safari. If you want a mix of the two you could get C99. There are soooooo many top 5s. Go to http://www.hanflexikon.de/ and check out what people have to say about their own personal grows.