I like everything about Xbox better than PS2. Better controller, better graphics, more durable, better games, etc. There are very few PS2 games I would consider getting. I had a PS2 for a while (actually only a couple months) and sold it since there were no games I wanted.
I personally do not care too much for Microsoft as a corporation. Plus, I am a mac user and I could care less about Windows. I never really got into the xbox probably for that reason. We briefly had one (from a contest) but we sold it. We purchased the original Playstation, and just have been going with Playstation consoles ever since.
I have heard many good things about the Microsoft consoles compared to Sony and sometimes Sony can be very arrogant, but at this point - I would welcome any new console that came in our house. Having a Nintendo is nice, but you definitely are missing the "wow" factor.