Is Google's better?
Not "better" so much as "different"; if one server's having problems, the answer is to change to another (at least until your preferred one gets fixed). In this case, Konlab was using Google's secondary DNS server, as it turned out (and is now using their primary). He'd probably get faster lookup times if he switched to his local ISP's, unless their DNS servers are really rubbish (they're still located closer to him, so less latency).
There's also the matter that some server companies host the same files at multiple data centers around the world. The idea is that your local DNS server will point you to the one that's closest, meaning you can download big files locally instead of pumping the data across from the other side of the world. Using a generic DNS server messes that up. If your ISP offers unmetered downloads from some services, it can therefore also mess
that up, because you end up downloading from a server they're not expecting you to be using.
Long story short, if it's working, you're usually better off using your ISP's recommended service.
On a side note, they will be able to know absolutely everything about you if you do so.
It wouldn't surprise me to hear that ISPs sell lookup logs anyway.
Most people don't use the term "web search" anymore, and instead use "Google" as a verb. Switching to their DNS service probably won't tell them that much more about you than they already know.
