What game do you think I should get- I like fighting games a lot

Street Fighter 4 is my personal favorite. Especially with the recent patch, it feels like the most balanced fighting game out there right now. Mortal Kombat is good if you like violence, and it also has better graphics. Marvel vs. Capcom 3 is a lot of fun if you enjoy comic books, and it also is very flashy (in a good way). I'm not too sure about either King of Fighters or Blazblue, but they both look very solid, too. I personally recommend Street Fighter 4, though.