Really? What about 200 or 250 Hz LCD's? Do they offer an edge over 60 Hz LCDs? What about movies?
Yes, they are "better" but by a negligible margin in creating a smoother image in fast-motion output. (hence why they target sports viewers)
And lets talk about games that have a lot of dark environments that run at 30 fps or less.
You want better Contrast for that.
Does additional 'Hz' help eliminate ghosting, color bleeding or blurring?
A faster RESPONSE time will get rid of blurring. For gaming a response 5-6ms is acceptable but 2-4ms is preferred (you commonly see 2ms gtg (gray-to-gray) advertised with PC monitors "real" response being 3-4ms). Color bleeding will probably be a Panel/TV quality issue.
The most important thing when buying a gaming TV/Monitor is your response time. Unfortunately TV makers aren't targeting gaming. Audio for movies and TV can sync to the delay, interactive gaming can't. A way manufacturers save money on cheap TV sets is to get 8-10ms panels. Fortunately prices have dropped so low on LCDs you can find 6ms panels in use in bargain TVs.
Your TV has a response time of 8ms, so yes, you maybe noticing ghosting. But the threshold for where people see ghosting varies. I use to be pretty hard into PC gaming so I know 8ms is where I personally see it so when I bought my TV I got a 6ms model and haven't noticed ghosting yet.