"For investors who seek superior relative performance but are unwilling to sacrifice dependability, the we offer four funds that consistently outperform their peers," says Richard Moroney.

In the mid-year forecast for his Dow Theory Forecasts, he explains, "All of these funds have outpaced category averages in each of last five years, and sometimes much longer." Here, he looks at those funds that he considers "perennial winners."

"To be sure, past returns do not guarantee future success. But, while the evidence is not conclusive, academic studies generally indicate performance tends to persist, particularly at the extremes. That is, the best funds continue to outperform their peers, while the worst funds keep lagging.

"Fidelity Export & Multinational (FEXPX), our favorite pick among large-company growth funds, is riding an impressive nine-year winning streak - the longest in its category. Among the more than 1,800 large-cap growth funds, less than 80, or roughly 4%, have outperformed the peer-group average for five straight years.