I know it's not what you want, but It's personal choice. If you think you are going to be doing a bit of typing then go browns but reds are better for gaming and will still be better than membrane keyboards for typing.
CM storm is pretty solid, but Leopold does take the cake when it comes to build quality. Question is do you want to pay for it? The design of the CM storm stabilizers is a bit annoying if you are going to be replacing keycaps but it's not like it's super bad.
EDIT: I have a Leopold with browns and a QFR with blues.