According to me Lightroom rocks. I am not that proficient at post processing and found it difficult to create layer adjustments in Photoshop. But from the time I have switched to Lightroom, it’s fairly easy to get the desired effects. I am specially fond of Lightroom presets and split toning. You can get beautiful effects by just moving the sliders.
I have even tried GIMP. It is free to software but I find it difficult to get comfortable with it. It has Photoshop type layers to work around with. So, I would just like to suggest you Lightroom and nothing else, though it comes at a cost!
BTW I would also like to know what other people are using.