I'm not currently playing, but I will say City of Heroes is pretty fun if you play it in bursts. As in, a month or two, then quit for a few months, then come back.
And it's $15 a month if you buy it month by month, but less if you wanna buy in bulk. If you live in the 'states they even send you a City of Heroes comic book for each game month, too. Which is kind of a nice little thing, since MMORPGs normally cost $15 a month now anyway.
They also add things/update it far more often than any other MMO I've played (Which is EQ, DAoC, Planetside, Anarchy Online, and the WoW beta) and I find it the most enjoyable of any of them. Sure, all there really is to the game is combat, but that's what I enjoy anyway. I don't like sitting there tapping a button every few minutes to craft things, I want to be able to be in a mission in 5 minutes and whomping bad guys.
Also, the travel time is next to nothing. With the trains taking you instantly between most of the main "Center" zones, and your travel powers (Super speed, super jump, teleport, fly) shuffling you quickly around.
So... uh... Anyone who is still wondering if City of Heroes is good, I'd say it's great. The combat is the most enjoyable MMO fighting I've ever seen. Nice and action packed.