Quote from intradaybill:
I think you are mixing a few things here, maybe because you haven't tried any of these.
StrataSearch and Price Action Lab create systems that traders are more familiar with when looking at them. StrataSearch is more of a permutation tool in my experience. It can create some strange rules. On the other hand, Price Action Lab's domain is restricted to price patterns to limit data mining bias as they claim. This one creates code for TS, WL4, and formula code for a few others.
ChaosHunter is more of a general statistical tool for forecasting. RapidMiner is a general data mining program that most traders may find hard to use so that they get something familiar to them out of it unless they have a degree in statistics.
Biocomp's product is AFAIK a black-box. I am not sure it is not optimizing as they claim.
The Grail strategy builder I think was bought by TS but IMO it is a walk-forward optimizer.
If you have the time and knowledge it worths trying to create yours. Otherwise, you may get one of these depending on your experience and knowledge of programming and statistics.