I use Lightroom (I'm on the PC so I don't have Aperture) and I love it!
In fact, for most processing that I do, I find I can do it a lot faster in Lightroom (and batch processing is a snap..) and only use Photoshop for compositing or fixing big problems. For everything temp, exposure, color, tone, contrast, and crop, I'm using LR. The color controls are way more accessible and thusly powerful in my opinion. Plus subtle things like "clarity", "vibrance" and "detail" are like micro-screwdrivers to their "curves", "saturation" and "shapen" counterparts (also available in LR.) I can reduce saturation for red and boost it for orange by grabbing two slider controls (vs PS's RGB model) plus all the edits are non-destructive so I can always go back to my raw format anytime and try again.
Anyway.. Lightroom, yes can't live without it now.
