Your best bet is to start by reading down the threads here and seeing what may appeal to you. You have named so many locations and so many types of cuisine! Search 'Dublin,' 'Cork,' and go from there. If you come back with a list of possibilities, people here are inclined to comment on your choices and help you out.
Indian food in London far excels almost every place in NYC. A few favorites here are Quilon, Indian Zing... others will join in to add to the list.