Well, I am one of the Merlin developers/owners, so I might not be the most impartial one to render an opinion, especially since I do not know the inner workings of MVP, but I think it is fair to say that they are very different systems, primarily in the signal time frame, frequency of trades (more trades = higher total commissions), and the time a losing trade may be held open. Also, MVP focuses on the SPX as a tracking index and trades SPX related vehicles (MVV?), while Merlin deals exclusively with the NDX and applicable NDX related vehicles (QQQQ, QLD, QID, NQ futures). Both systems are ranked in the top eschelon for stock trading systems on C2, with MVP's system drawdown higher, but also with a higher overall profit margin. If you are considering subscribing to one or the other, I think it would be safe to say that you will be happiest with the one that best matches your individual trading style. I have "known" the MVP developer for some time, consider him to be a friend, and IMO is a person of the highest honor and integrity, so you would definitely not go wrong by giving him your business.
Steve, if you read this, please feel free to jump in and correct any misstatements or mischaracterizations.
