Neobr10: Im playing DC Universe, currently. This one surprised me a lot. Its kind of a "beat em up" MMORPG. There are combos, lots of skills, and many, many ways to make your char. There are many combat styles.
The quests are really fun and there is a lot of content (raids, PvP, group based missions, PvP arenas with fixed characters from DC). Oh, and you can solo your way through the game.
Oh, its F2P, by the way. But guess what? This one isnt actually pay to win. Im already level 20 (max is 30) and didnt have to spend anything. Once i reach end game i will buy a few DLCs that come with more missions to support this model.
Yeah, DCUO is one of the better F2P MMOs. My only real problem with it is that after a while I found the combat to lose its novelty and I ended up basically just spamming the same one or two moves over and over.