Kouros is too strong for the office unless you've had it on for 4 hours before you going into work.
Burberry London is best in cool/cold weather. Not really great in hot weather.
PdN New York and BdP are pretty similar, with PdN being a lot less $. Both are strong, kind of old school powdery and spicy, long lasting, and you'll either love it or really hate it.
Wearing something in the office that's too strong is risky. You can end up being "that perfume guy". Strong sillage is better for the clubs, or even on a date.
For work, I recommend
YSL Live Jazz (cheap, long lasting, good stuff)
Nasomatto Silver Musk (good sillage, lasts a long time, expensive)
Creed Erolfa, Creed Aventus, Green Irish Tweed (all very nice, kind of expensive)
I vote for Green Irish Tweed. It'll work with a white shirt and tie or T shirt and Jeans, hot weather, cold weather...