Me too. I grew up watching Gundamn Wing, but there was something about the grittiness of 8th MS Team that has always stuck with me. I think it was the vulnerability of the mechs.
It was that, and also they didn't have "New Types" in there. I never really liked that element.
Also, Shiro Yamada was a bit of an Idealist, but he wasn't like most Gundam Pilots that seemed to enjoy their daily pity parties.
Another thing I loved was how they did the mech animations. Like the Desert Gear on the Gundam Ground types. or the I/O Jack in the palm of the hand that allowed the Mech to use the weapons.
That and um....Karen Joshua.