The "best" wiper actually varies with the vehicle it would be used on since the size of the windshield and the curvature makes a difference, since lower angle and larger windshields require longer wipers.
In general I like Bosch wipers, their beam-style wiper blades are very good on many windshields, and work good for winter use since they don't have any of the exposed parts of standard wipers. The Icon wipers are expensive for what they are, but you can sometimes get a deal with a buy one get one 1/2 off promo or mail-in rebates.
The less expensive Bosch standard style wipers are good too, I prefer those on the Explorer since they seem to do well in the 18" length. The Bosch Excel+ wipers are great, the Steel Series are good.
The wipers branded as Michelins are pretty good as well, both the standard and beam styles. I had a set of the standard style last a year with normal driving and use.
You can get Bosch wipers for not a lot of money at places like Rockauto.com, even though you pay shipping, if you buy enough wipers or get them on sale/clearance, you can still save a lot over retail prices and get a better quality wiper.
I've also just bought whatever wipers are on sale/clearance at the parts store or even walmart/target if they are cheap enough. Generally brand-name wipers are pretty good for at least a couple of months.