Corsair is the better option. Made out of aluminium and not cheap plastic. Feel great to the touch also, and looks amazing.
Razer are made from plastic, which is not a bad thing but I think feels cheap.
I dislike blue switches. I use brown as they feel great to type on as well as game easily. However red are also a great choice especially for gaming. They're pretty good for fast typing too, so you'll have no problems for any work you need to do c: