You know, I typically avoid being a grammar Nazi, but that post levels all sorts of hurt on my brain.
Anyway... yeah, while I'm excited about Pirates (and have already bought the sets... they've been out for several months now), it is certainly not the only decent line, it's not even the only decent original line. While neither Agents nor Power Miners floats my boat, they're both very interesting lines that have given several unique parts (and SHARKS)! Castle has had some glimmers of hope as of late, especially in the LEGO exclusive village, so full of happy that it could rot your teeth.
Beyond that, while the Clone Wars cartoon is buckets of lame, and the dead horse that is the faces has been whipped like Don on Tuesday, the sets themselves have been very good. The Clone Walker BP is a good addition, the Republic Attack Shuttle is a fun and inventive build, Vader's TIE is a good upgrade... and seriously, have you seen the bottled hawt that is the Summer sets? Hoth and Endor sets? Venator Class Awesomeness?
That being said, the Pirates line, while potentially so cool, is rather lackluster at this point. Brickbeard's Bounty is very nice, but it's expensive and has a bad price-per-brick ratio. The rest of the sets have cool minifigs and cannons, but they're rather boring overall. The hideout is meh... the best part is the lady pirate figure. Loot Island, Kraken Attack, and Cannon Battle all have some good points, but they're not overly "piratey" in feel.
The biggest problem with the line right now is that it's basically half finished. Only the pirates have ships, and only one at that. The good guys have a few canoes, but you can't do a whole lot with this line yet, and that's what hurts it. It needs a couple of smaller ships, and the good guys need a big ship. There are some obvious characters going here, but not enough to get kids (and me) drawn in yet. So no, it's not the only decent set. Of the active stuff, I'd put it 4th or 5th on the list, honestly, behind the ones I mentioned earlier.
You know, if I see links to Brickshelf, more often than not, the first thing I click is the "Back" button.