Heh, I did sign my previous reply, "my opinionated 50c", which is what this note was, an opinionated and personal viewpoint. This reflects my own experience, and was very much not intended to be an objective statement.
I'd like to apologize if anyone reading this felt I was putting down any other pros who don't feel this way

Not intended that way at all.
I do however standby the undeniable fact that Aperture requires a very fast machine with much RAM to work efficiently, and LR does not. And LR has seamless integration with CS3 and is available for Windows. And has the marketing power of Adobe behind it, who also make nearly all of the main image manipulation tools we all use every day...ya know
Time will tell which application becomes the de facto standard for the job, but I still reckon the bulk of the pro end of the market will end up using LR in time.
Just my 75c worth
Best to all
Will