Pokemon
Though I like Pokemon, I haven't really touched an actual game from this series in a while. However, Diamond and Pearl looks like a great way to start off the next generation of Pokemon. Though I haven't played many Pokemon games lately, I do remember what Pokemon types I used. Well, actually, I just used any, as long as it could defeat a certain wild Pokemon or trainer (usually a gym trainer) that was giving me trouble. So you could say, I specialized in "all" types of Pokemon. Still, I could lose a match, becuase I have several times because of:
1. The Pokemon was at a low level.
or, 2. I just didn't know how to use the Pokemon right. :P
That proves Pokemon games require knowledge of the Pokemon you use before you decide to use them in a match.
Just out of curiousity, what new features do Diamond and Pearl have other then the obvious use of the touch screen?