For years I have loved Angel by Thierry Mugler which I still count as my favourite; I love Alien almost as much although I don't have the same sentimental attachment to it that I have with Angel (yet).
The bottle for Alien is lovely and it looks like an artifact you'd find in an alien craft, like a precious, purple gemstone engraved with hieroglyphics carrying ancient secrets. I have read comments where people don't think too highly of the bottles (someone said they looked like penguins); they aren't necessarily to everyones taste as with everything but I think they're fun and the 'penguin' comment amuses me.
The perfume itself was lovely, it has been described as smelling of Amber, Jasmine and Cashmeran, I'll be honest on this I cannot really say too much as I have no idea what cashmeran is, but the jasmine was ever present; if you don't like jasmine, then you probably won't like Alien. Much like the bottle opinion seems to be divided on the fragrance with some saying it is a real 'scrubber' (a feeling I have only had with a perfume once before) and claiming they could smell a chemical element to it, I couldn't smell that and I love this perfume which works well with my personal chemistry.
*I did, however, wash it off.