I have seen both Olympus has fallen and London has fallen. Both have their entertainment values but both films are missing "something".
However I was pleasantly surprised by Angel has fallen, it is no doubt the best of the trilogy. The acting, dialogue and character development is brilliant with some true moments. There are some scenes that are brilliantly tense with the help of a thumping soundtrack which cranks up the tension in a way Dunkirk and sicario do.
The "baddies" really are tough and brutal (no spoilers) at times.
Thoroughly enjoyed it and so did the Mrs, I expect there won't be a fourth but if there is this is the style it needs to be in if not the series will end on a high!