I'd recommend Defy Extreme Wood Stain strongly. I had a large new deck with redwood planking. When it came time to stain it, I was very careful in selecting what I applied as I'd had bad experiences in the past. I researched many products and picked Defy Extreme. It has turned out splendidly -- the first deck is now 18 months of wear, and another deck has 8 months. Both have held up well to the elements and look close to the day they were finished. One tip I'd add: the manufacturer says to NOT recoat the wood once the two initial layers have dried. I have done so successfully with one trick: as the first coats work well the additional coat tends to pool upon application, concentrating the stain into "stains". The trick is to apply a small area, let it get tacky, then spread. The tackiness then keeps it from pooling.