A cartoon about teenage superheroes who live in a giant "T" and guard their city from villains named things like Cinderblock and Overload? This show's just gotta stink, right? Surprisingly, Teen Titans is quite entertaining, and at least it's ahead of most cartoons today in that it has genuinely likable characters and interesting plots.
Teen Titans is a show based on some classic (and very lame-looking) DC characters who were pretty much mostly sidekicks to various big-name DC superheroes. How exactly the new writers managed to take such a dubious start and turn it into a watchable show is unknown. The point is, they did it, and now we've got a darn fine cartoon.
My favorite character on the show is Raven. I think she's very well-designed and has a particularly good voice actress. Her powers tend to be a bit too useful, as she can slice things up, use telekinesis, phase herself and others through things, sense motives and people, and even heal wounds. That's like five, say, X-Men, all rolled into one. Add some sarcastic lines and a Goth-looking design and you've got Raven.
The other characters are all really likable, even Robin (mostly.) And there's only five of them: unlike X-Men Evolution, this show doesn't suffer from having too many characters to keep track of and try to cram into episodes every now and then to keep people from yelling "Hey! Whatever happened to...?" It does have a decent cast of supporting characters, though, in case you were worried about not having enough characters on the show. Unfortunately, none of the supporting cast are as cool as the main guys (except, notably, Red X. That guy's pretty cool.)
They have a group of three super-powered teen villains, the Hive, who are pretty cool. Unfortunately fights against these three (Jinx, Gizmo and Mammoth) are always five-on-three so the writers usually have to find some way to split up the Titans to keep it from looking like they're beating up on the bad guys. Later on they introduce a second superhero team, Titans East, made up of supporting characters from previous episodes (Aqualad and Speedy), a character who had a cameo before (Bumblebee) and two new characters who pretty much count as one person, Mas y Menos. Seriously, though, someone should call immigration, 'cuz those two are mucho annoying.
Teen Titans episodes have several things you can count on. Watch for:
-People arguing and turning into even more cartoony versions of themselves, often accompanied by a growing of the head and sharpened teeth.
-A montage, often musical and often our heroes chasing somebody.
-Fights starting with the Titans gathered together, a bad guy shooting at them, and them all scattering before starting to attack.
-Applications of the X-Men Evolution "Nightcrawler, teleport!" thing where you realize that certain things could be overcome so easily with proper application of powers. Raven could stop countless villains from running away, for instance, by simply lifting them up off the ground.
Maybe I'll add more as I remember to mention them. Meanwhile, if you haven't been watching this show because it looks lame, give it another chance. Yes, it has a lot of lame elements, but after a while those become actually kind of enjoyable as you stop expecting grand, realistic stories and instead sit back and enjoy some simple, cartoony Teen Titans fun.