The only one worth having is a Surefire X300. You can stalk ebay for deals on them, or the older X200s also pop up at a good price from time to time. Yes, they are more expensive but I really do believe you are getting your money's worth.
I respectfully disagree, TLR-1 is just fine for home use. If I was a LEO or carrying a light mounted weapon everyday it would probably be the X-300 but I'm not going to beat the crap out of my TLR-1 using it at home. I have had very good luck with Streamlight products, I have two Scorpions I've had since before my Dad died back in '98 and they have been treated pretty bad over the years and still work just fine. Not everybody can put $250 in a light. I also have two Surefire handheld lights.