I look for games that are original. I don't like games that are made based on a bestseller, those games tend to be far worse and the story is not that great. Sometimes I look on what people are most talking about and try those games unless I know it's a cult following of Harry Potter or something like that. Also, sports games like FIFA are really great, although players like Zidan are not in the newer releases.
The pc offered better graphics in games before play station 2 or 3 ever came out. I know people that use computers for everything and probably fell in love with them so it only makes sense that they play games on them too. I had a few games I loved playing on the computer like Test Drive and Delta Force. All you need to get is a good controller and you don't have to buy a game system, and the games cost less.
Sometimes even if it sais available now they don't have the game yet. This happened to me several times also. If you don't have the available game in the first place you might have to top it. Also, try keeping at least five available games on your list of top five. That way they gamefly will send at least one of the games right away and you won't have to wait.