If you go by the buy-and-hold method, it doesn't matter. Buy small bits of stock to increase your portfolio over time and it averages out anyway; the market always rises over time.
If you're trying to day trade, you'll probably lose money anyway, so do whatever makes you happy.
To make a significant amount due to a dip, the dip has to be more significant than this one is. That being said, I like GE right now.