TheStreet.com Power Stock Rankings: May 6

4. First SolarFSLR: Look at a chart of FSLR for last week. This is why you should be patient, pick your spots and not be a perma-bull in any one stock. To review, FSLR became a classic investing conundrum where the fundamentals of a company are amazing, but the equity is priced for perfection. Now, patience is paying off, and it can be raised to Buy after having sat as a hold for the past couple of weeks. The stock is down a quick 40 points and trading at the $270 price level I was waiting for. Put on a quarter-position here and add as the stock comes in. -- BUY

5. MicrosoftMSFT: The pulling of the Yahoo!YHOO bid means you can and should aggressively buy Mister Softee shares. The market was worried that Steve Ballmer would up his bid and overpay for Yahoo!, putting a dark cloud overhanging its shares. With YHOO now out of the picture, I think it goes back to the mid-30s. Buy this stock aggressively. -- BUY

6. Altria GroupMO: The split-up of Altria into a domestic-focused MO and Philip Morris InternationalPM is confusing investors but bringing a great opportunity. Here is a chance to pick up a premier American company that is paying a juicy dividend yield of 5.5%. MO is a safe conservative dividend play that should be part of every diversified portfolio. It is not going to knock your socks off with big runs like a BaiduBIDU, but you will be able to sleep better at night. -- BUY

7. MasterCardMA: I prefer MA to V as stated above, but both stocks are on fire. MasterCard trades at 27 times forward 2009 estimates, while Visa trades at 34 times. MA is cheaper on a valuation basis, growing faster, and has less headline legal risks. -- BUY