Well the discone would perform better at 800mhz and VHF-lo. I think both would probably perform about the same on VHF-hi/UHF.Wirelessly posted (BlackBerry8530/5.0.0.973 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/105)
I own the radio shack discone antenna which does pretty well does the 20-176 out perform it