Very few people picked up more than one Ciddie, by the way.

Vivi - Best Character, Nicest Character
Cloud - Most Influential Character, MLT Get Together
Kefka - Best Villain, Evilest Character
Garnet - Cutest Female, Cutest Couple
Auron - MLT Beat up an Adamantoise, Best Voice

...I think that's it... oh, and VII won three of the non-character awards in One Winged Angel (claimed by Sephiroth), Death of Aeris (claimed by Aeris) and Midgar (claimed by Rufus Shinra).

In total, counting characters to their most well known games (although some left as 'multiple')...

I-III: 0
IV: 1 (Cecil)
V: 1 (Gilgamesh)
VI: 5 (2x Kefka, Shadow, Mog, Ultros)
VII: 12 (2x Cloud, Heidegger, Barret, Vincent, Aeris, Zack, Cid, Tifa, Aeris' Death, One Winged Angel, Midgar)
VIII: 4 (Squall, Biggs, Wedge, Selphie)
IX: 8 (2x Vivi, 2x Garnet, Steiner, Zidane, Freya, Quina)
X: 3 (2x Auron, Tidus)
XI: 0
XII: 3 (Balthier, Ivalice, Ashe)
XIII: 3 (Lightning, Snow, Vanille)
XIV: 0
N/A: 2 (Bahamut, Chocobo)
SE: 2 (Uematsu, Nomura)