UC :
I'm not a big fan of some of the U.C designs but i do like the RX-78NT1 Alex and the Kaempfer(sp?) . Sinanju looks pretty good too.
AC :
Wind Zero Endless Waltz version
-I do admit that while the wings and the feathers flying all over makes it a wee bit ridiculous , everything else about the suit just screams COOL !
Deathscythe / and its variants
-Gundam with a scythe . need i say more?
CE :
Freedom
-I
love the design of the suit , it isn't too plain nor overdone (S.Freedom) . PS:The scene where Freedom shoots that Ginn and saves Archangel was epic.
AD :
To be honest i liked all the gundams in 00 S1 , mainly because of the visible GN drives i thought that was cool
. I like these the most though :
Exia
-One of the few gundams that deviate from the traditional beam rifle + shield combo . The GN sword gimmick is one of the coolest i've seen
.
Virtue
-2 gundams in one and despite being bulky it still looks fairly good . The GN Bazooka doesn't hurt either.