Domain registrar recommendations?

In a couple of months, one of my domains is up for renewal. I've been using Dotster for years now, ever since I ran screaming from Verisign nee Network Solutions back in the day, but my eye is wandering.

Mainly because Dotster does not, nor does it have any plans to, support DNSSEC and IPv6 glue records.

If this goes well, then I'll be moving the rest over as they eventually expire.