Over the past 10 years, large growth stocks have outperformed large value stocks. I think that explains the better performance of Blue Chip Growth more than anything else:
Blue Chip Growth, 77% large/growth, +9.7% annualized for 10 years (expense ratio: 0.98%)
Vanguard Growth, 51% large/growth, +8.7% annualized for 10 years (expense ratio: 0.09%)
Vanguard S&P 500, 29% large/growth, +7.5% annualized for 10 years (expense ratio: 0.05%)
The SEC requires "a fund's past performance does not necessarily predict future results" to appear in a fund prospectus. If you expect +1.00% more performance while paying +0.89% more annual fees, you might be taking the SEC warning too lightly.