Taken from: http://www.av-test.org/en/test.....s/android/
The best products in our tests (with detection rates of 90% and above) come from the following top 10 companies, listed in alphabetic order: Avast, Dr. Web, F-Secure, Ikarus, Kaspersky, Lookout, McAfee, MYAndroid Protection/MYMobile Security, NQ Mobile/NetQin and Zoner. Users of products made by these companies can be assured that they are protected against malware.
Products with a detection rate of between 65% and 90% can also be considered to be very good and have the potential to join the group of best products above if small changes are made to the set of malware tested. Some of these products only fail to detect just one or two malware families that may not even be prevalent in certain environments. The following 13 products, listed in alphabetic order, fall into this category: AegisLab, AVG Mobilation, Bitdefender, BullGuard, Comodo, ESET, Norton/Symantec, QuickHeal, Super Security, Total Defense, Trend Micro, Vipre/GFI and Webroot