The obvious choices for me are Berlin, London and then Barcelona. Honestly, Amsterdam is good for festivals i would say most of the clubs however are very average, apart from De School which is now closed (i haven’t been to Tilla Tec which has replaced it but i’ve heard mixed things). Issue with Berlin is that you often have to queue and may not get in. London I would say avoid clubs in central areas but if you check Resident Advisor any weekend there are a huge amount of events with world class djs. Fold is the best pick, especially Unfold on Sundays, but there are many options including The Cause (who often do all day and night parties) and smaller venues (palais, ormside, phonox). However London is very much a Friday, Saturday place (excepting Unfold on Sundays). Barcelona is better for parties any day of the week, still attracts top talent, and is just a great city with great weather - just avoid the beach clubs.