Which is best DNS and why?

i don't know what you exactly asked :) neither i understand what were you replied :=O Any how Its always best to choose the closest DNS server so that your queries should take minimum time and closest to you is DNS set by your isp. If you are on dial up ,DSL,or any other media your ISP provides you with a DNS servera and that is best for you,Moreover mostly ISP don't allow to use external DNS server instead of their own.So its always better to be on your own DNS server provided by your ISP.

.net and .com r the best domain name system and its safe and secure

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