For me it's the 8th MS Team. It has great characters, who react to the tragedy of war in a very realistic way, the mecha battles are very enjoyable and I appreciate the fact that the Gundams are not super-machines but just regular equipments, and in this the 8th MS Team is much closer to the spirit of the original Gundam that any other recent series. Plus, Norris Packard shows the world that you don't need a pretty face or less than 18 years old to be an ace