What you like or what is suitable for you is the best for you.
People know that Godadday is the largest registrar in the world ,but it isn't the best choice to some people either.

I work with joker.com. They are from Switzerland ( outside EU borders )

ONLINENIC, they have been great over the years with almost 0% of issues.

Joker are in Germany, which is *inside* the EU
(EIS the parent company is in Switzerland) :p

The "best" registrar is the one that matches your requirements - and everyone's requirements vary:
price
support
tld range
api
integration to existing systems
deposit level
etc

http://www.prweb.com/releases/2011/5/prweb8398892.htm

There is no best Registrar in the market.. there is only the best one for your specific needs..

I'd recommend to choose Registrar that has at least several accreditations and nice reputation in the market.

Directi - Resellerclub is the best domain registrar. They provide quick support for any issue raise on your account.

i like name.com

justhost.com, hostglator.com and godaddy.com

I am trying to suggest European domain registrar, but when I hit the submit button; name replace with "*****".

I am guessing the business name has been censored for spamming/shilling.

Godaddy for me hands down.

Either Nominet, because a guy there was so helpful the other day.

Or Gandi.net because they are like eco right on dudes..