MBP, why I still use it

Despite the fact that I've been suffering quite a bit from OSX, I'll probably continue to use it at this point, because:

1. Fantastic keys in the keyboard. I really liked Thinkpad keyboards (my first laptop was Thinkpad 560, and I've been a user of T-series, including T43p). However, I really get to like MBP's keyboard keys. It has just the right amount of key travel distance, and spaced just right, and can be pressed small amount of force, unlike some other keyboards, yet it's not overly soft. In other words, it's the goldilocks of the laptop keyboard for me.
2. Battery life. T43p lasted barely 2 hours, and I used to carry extra battery. MBP lasts easily 4 hours, and more like 5 hours. Practically I can carry around all workday without charging.
3. Performance. Whatever I can say, MBP is fast enough for what I used it for. It's almost never a bottleneck for my use.

I'd guess #3 will be similar in other laptops with similar hardware. So it's not really MBP's advantage. That said, things I wish the most:

1. Page up/down, home/end keys. Out of all keys, I miss those four keys the most.
2. Fast way to cycle through the windows, instead of applications, without touching the mouse.
3. Less awkward keyboard shortcut for copy and paste (I guess I'll have to practice two-handed copy-and-paste - pressing c/v with left hand and right-command with right hand). If only left command key was slightly moved toward right, by reducing the space key a bit - as is, either I have to move my whole left hand/palm to press left command key with my left thumb, or my left thumb has to bend a lot to press it. Awkward either way.
4. Consistent keyboard shortcuts between applications. I'm still quite confused of shortcuts in many applications. Not the app specific ones, but more basic ones like beginning-of-the-line and end-of-the-line, page-down and page-up, beginning-of-the-page and end-of-the-page. And also how certain shortcut combos are treated differently depending on whether a textbox has a focus or not. It's all confusing and annoying. e.g. I mapped ^-T to be "New Tab" in Safari, but if the focus is in the text area, it doesn't open a new tab. Instead, I think it does "transpose" of the last two characters. :(