Dublin
Walton's Hotel: great location, a minute from O'Connell Street, about a 10 minute walk to Temple Bar, nice clean rooms, good breakfast included, friendly staff

London
St. Christopher's Inn at Shepherds Bush: decent location, right across the street from an Underground station, great bar, friendly staff, simple but clean rooms

Amsterdam
City Hotel Amsterdam: there are two City Hotels in Amsterdam, this is the one on Prins Heinrikadd, 5 minutes from Centraal Station, clean rooms with a tv, phone, and mini bar, friendly staff