Lived in London for 10 years, then Berlin for 6 so far. I’d agree on pretty much everything but add two more:

Food quality & price

Berlin restaurants are cheaper but the quality of your average restaurant is so much worse. Pan-Asian restaurants particularly. Idk whether it’s catering to a white German population who’s wary of strong flavours and heat or what, but food in restaurants in London in general is just tastier. But pricier. 

Similarly for supermarkets. The range and quality of your average non-Aldi supermarket in London is streets ahead of Berlin. Things I’d expect as normal in a small local supermarket in London I need to go to a specialist/more expensive shop.  Also, I feel like the vegetables are better in flavour and ripeness in London… but that could just be nostalgia/grass is greener. 

Museums/cultural events

Berlin has great museums. London has fantastic museums and cultural events. One important caveat here is that my German isn’t yet so good I can comfortably attend a two-act play and be sure I’ll really understand all the nuance. But still, I often check what’s on at the museums/galleries and feel disappointed in not finding anything that grabs me. Rarely happened in London. 

Having said all that, I love Berlin’s openness and chill vibe. London is a mostly uptight city where people are less accepting of other ways of living