I do.... (spread out over several registrars for seo reasons)
I use:
- Fabulous
- Moniker (talk to Bari)
- Webair (takes a while to get used to their control panel, but decent prices and they're easy to contact)
- Namecheap (not great, but learned to live with their shortcomings
)
- Name.com
- Dotster (only got a couple of domains there)
- Godaddy (I don't trust them (because of what happened to insecure.org), but I still use them for noncritical domains because of their prices)