I find the power of Lightroom to be quite dramatic. This might not be the best example, but it will do.
Camera profile, white balance, tone curve, graduated filter of less exposure and more saturation in the sky, vignette, vibrance, clarity, spot removals, saturation shift of blue, orange, red, and yellow, noise reduction and sharpening – all contributed to the final product.
Others can use all the power in Photoshop, or Aperture, and that works for them. Lightroom works for me. If you’re struggling with Aperture or find Photoshop to be too intimidating, try Lightroom!