Search Engine Forums, SEO Forum

I would like to know which registrars are most popular these days and why do people choose them, that is why I ask you to post your fave registrars awith few words about your choise.
My favourite are two: sibername.com which I get a generic TLDs from and SEO services of the highest level and also I like eurodns.com which offering great amount of country code top level domains with huge discounts from time to time.
your turn
thanks!

I use the registrar http://www.XnYnZ.com. I like their services and the plans they provide for hostings. I still not changed the registrar and happy with their customer support.