Why you lol godaddy?
Because they can and will hold your domains hostage without recourse for any reason under the sun, as well as revealing your personal info on a privacy protected domain without a court order (just takes a little social engineering or a fake DMCA claim).
I use and love name.com for my needs. One of the unique features that they offer is the ability to set IPv6 glue with no need to email support or jump through hoops.
Or, you could try Zhou Tong's nameterrific.com site, which uses Amazon Route 53 for the DNS backend.