If cost doesn't matter, I would go for the MBP that has HR screen. With that said, I have owned both 15" MBP and now a 17" MBP. My 15" wasn't HR so the resolution was okay. It looked like my previous black macbook that I had. Now, the 17" comes standard with HR and it's a great screen. It looked like the HDTV on my TV. There was blur when I played a movie and the blacks were solid and colors weren't washed out. It's not really fair to compare the 15" MBP to this one since it wasn't HR but the difference was night and day. Movie overall looked washed out. Blacks weren't solid at well and colors were almost washed out.
As for as the "small" issue regarding the HR in the 17", I don't understand it really. Maybe because I have 20/20. The size of everything was pretty much similar to my 15" MBP, just a little bigger. Sites had more white space to center the content. However, I have always found a fix for sizing. Safari, you can make text bigger. Dock, you can make bigger. Desktop, you can make bigger. And I think pretty much all have their own text size. Especially Preview, when I crop something small enough and use "actual size" it really is the actual size of the physical product.
But, it's your money. This is just an advice, the same one I took for my current 17" MBP