The following lists reflect my own personal opinions, are not meant to offend.
Worst all around female Idol-Suzy(from MissA), her acting is pretty awful, she isn't unique in any way shape or form, and her singing is kind of blah.
Worst all around male Idol-SiWon(from Super Junior)- I just don't get it, he is a mediocre singer, dancer, and actor, why he is given so much praise and limelight is beyond me. The only thing that he has is his figure, and is that really a talent?
Worst female groups-Girl's Generation, 4Minute, MissA, T-Ara, Kara and many other's.- I think this has more to do with my Western female mind set, please don't get mad at me any fans of these groups.
Worst Male Idol Group-There are a couple I don't like, but that's just me no real reason for it BlockB, TVXQ, BTOB, and a few others.
Best All Around Female Idol-Hyo Rin, for the same reasons already mentioned. I would have picked ALi but she really isn't an Idol.
Best All Around Male Idol-G-Dragon,for someone as young as he is, he is very mature. But, not only that, he is a gifted artist, almost anything he does is perfection.
Best Female Group/s-2NE1 & SISTAR-Both groups have that one or two member who has the qualities I don't like in female idol groups, however to deny the plain, soulful, playful, sexy image and attitude all these girls portray would be wrong. They can all dance(some better than others), the music is good, it doesn't hurt my ears (although some of SISTAR's comes close). But more importantly, they show you don't have to be a perfect cookie cutter girl to be successful(2NE1 in particular).
Best Male Groups-SHINHWA, SHINee, and BIG BANG- Since SHINee and BIG BANG have been talked about already I will talk about SHINHWA. I am a late comer to this group, however, any group who has stayed together for 14 years, done military service, and are still at it, exemplify what it means to be artists: To be an inspiration.