What brand of laundry detergant should I buy? I tend to sweat a lot at work, and my clothes get...

I tend to sweat a lot at work, and my clothes get stains and I have need of help finding the best laundry detergant. My one friend suggested gain. She says it smells correct and is pretty good at removing stains. Which brand would you recommend and why? Which brands have you have trouble getting tough stains out with? Please, all the personal experiences you can dispense me will help a lot. Thank you really much!
Answers:    Yeah I personally like Tide the most. I also use Gain though.. but more for the scent. Tide is supposedly the best on the bazaar. I like Tide with a touch of Downy, but you may want to stir with one of the stronger versions that don't contain a yard goods softener in the detergent like this. Luckily if you look you'll see that Tide have SO many different versions on the flea market there is something for everybody. Good luck.
All works fine for me, and it's somewhat cheaper than a lot of other brands also, Arm and Hammer gooey too. Liquid Tide w/Bleach, It also smells good and works great & is safe for colors also. If you hold a set in stain- I would use Spray n Wash w/Resolve power-it also smells nice and works great.