Qihoo and TM are better and excellent antivirus each day, I think they are now slightly ahead of Bitdefender. ESET a good place and good AV too. Thanks @Petrovic!
Trend Micro is doing well. Vipre extinct. Lavasoft extinct. Kingsoft losing battle with Qihoo and Baidu. AVG improved lately with Identity Protection. Panda varies a lot. Eset and Kaspersky are stable. I would love to see Comodo partnership with some good signature based AV like Avira