Comodo Dragon for me. Here's the key (and a lot of people ignore this, unfortunately.) Use the browser for the game, the whole game and nothing but the game, so help you God. ;-)
When you get the browser (and it's a Chrome product) you immediately set the home page to the game client. Get the AdBlock extension and have it on. Allow cookies for WGT.com. Disable automatic updates. Uncheck the boxes for clearing stuff on exit. Drag the CD icon into your quick launch bar. Close the browser.
Now, every time you click that icon you will be taken directly to the game. No passing Go, opening the WGT home page, no tool bars, no PMs, no ads, no nothing, just the game. I've read all about the stuff Chrome users have been through with all this Flash business and my game setup hasn't flinched. Swear by it. :-)
This is exactly what I see on my lap top screen after hitting the F11 key to go full screen (not the lame in game zoom.)
