I use
www.dd24.net
WHy? It's not a reseller, second they have good support(and also office hours during my timezone) They are pretty cheap 10.34 euro per domain. And it the interface is great. Easy to lock domains, see a statuf of a domain etc.
Besides that, they have an option for auto renew. Which means, if my domain is expired, and I don't press delete, it will be auto renewed. So when I'm on holliday, and I forgot some domains, I don't lose them.
Of course you can set to status delete after the domain is registred as well. Also the email on new a new domain status etc