I don't think the cool blue is any good. The colour temperature is all wrong.
The ones you want are the Osram D2S Night breaker unlimited.
In all honesty though, Xenon brightness doesn't vary that much between brands, just stick to the OEM colour temperature, which I think is 4300ish K.
Not that hard to fit. Awkward for space but otherwise OK. People with fat sausage fingers may find it easier to remove the headlights. Just be careful with the wiring connector as they're brittle and easy to break.