What are Fools passionate about? Roses? Chocolate? Diamonds? Nah, none of that mushy stuff. Fools groove on stocks. We asked five of our writers which companies make their knees weak and their palms sweaty. Their odes are our Valentine's gift to you.

Should you find yourself irrationally falling in love with these stocks, dodge that arrow, Fool! Take a careful look at these companies before buying. If it interests you, do your own research and make sure it's a good match.

If you find our heartthrobs a good place to start your research, you should definitely check out The Motley Fool Select. Each month, we send you our best stock ideas, and, for a limited time, you can get two issues free plus our brand-new report, "Betting Against the House: Shorting for Profit."

If there's a special stock in your life, share the love. Post a message on our Specials discussion board.

Happy Valentine's Day, Fool. Here are our six gifts of luv to you: