lightroom or photoshop?
Once I understood LR, I found it simply more rational in it's approach, and easier and faster to do the things I typically need or want to do.
But if you're used to how PS works, switching to LR can be a challenge. I highly recommend the Scott Kelby book as a good way to make the segue.
I've told myself to stop using "equivalent" focal lengths on m43. 25mm is what it is, and what it might be similar to on some other format doesn't matter to me any more. We need to learn what to expect from our current equipment, not keep mapping it to the old. No one refers to their 50mm FF lens as "equivalent to 80mm on MF."