We have similar tastes. I like the BBC ones and Nikita. Haven’t watched the others.
I’ve gotten hooked on Lark Rise to Candleford. Takes a few episodes then it sucks you in. Amazon has it.
Sleeper Cell was an excellent series, offering insights into some aspects of terrorism seldom highlighted. Robin Hood was really good too, combining humor and excitement in good balance. The Killing is intense, but really good. These are all on Netflix.