server4you got sold to Hosteurope,
Hosteurope got sold to GoDaddy and they moved most of their servers from colonge to france, no problems so far.
i would not recommend strato and 1und1, everything is fine unless its not and nobody picks up the phone
no experience with manitu so far
ip-projects.de - good host and good customer service
netcup.eu - good host for smaller projects