PC gaming is about control and power. With a PC you can choose whatever input you want to play your game. FPS games are definitely better on PC with mouse and keyboard, but even if you have a genre that is suited for controllers you an just plug one up to play your platformer, racer, etc.
PC's will always be more powerful than console. The 360 and PS3 were close for about a year or 2, but PC technology is FAR beyond what you'll find in a console. Better graphics, ...
Sure. Because an opinion becomes irrelevant after 30 days.