Great. It's pretty obvious that you need/love Microsoft Word. That's totally cool. If that's your most important software title on a computer, why insist on staying on OS X? If my most important software application was GarageBand, you wouldn't see me working on a Toshiba.
I think, however, you're in the minority. 90% of people could get by with TextEdit, 7% need Pages, 1% need Office for Mac, and the remainder need to be on Windows or use some special technical writing software such as TeX or Framemaker. I hope you enjoy your Dell.
Actually, I do not love Microsoft Word. I do not have a love/hate relationship with software. I use what works best for me at a given time.
I had problems with Microsoft Word in the past. In 2006, I was writing my Master thesis on Word 2003 (on a Windows PC). Everybody used Microsoft Word back then, as everybody uses it now. Word crashed, corrupting the .doc file in a way that it was not possible to recover. I thought I had lost my 200-page work since the file was corrupt and I could not open it with Microsoft Word anymore. My salvation was OpenOffice Writer. I tried to open the file with OpenOffice Writer and it worked fine.
Then I learned that Microsoft Word's .doc was a filetype prone to crashing and that OpenOffice's .odt was much superior, as it was a Zip file containing two files inside one, a plain text file and the other with formatting. OpenOffice's file format was much more stable and I went on writing my thesis in Writer instead of Word. Writer's interface was not as good as Word's and I am not talking about beauty here. Commands were easier to find in Microsoft Word than in OpenOffice Writer, and the overall experience was better. Ergonomics was better. However, I stuck with OpenOffice Writer as I could not rely on Microsoft Word's filetype. When Word 2007 was released, with a new filetype (.docx, which was similar in concept to .odt), I started using it, and I found the ribbon enhanced the experience.
Word evolved to be a better word processor since then. Word 2010 was even better. However, when I was writing my PhD thesis in Word 2010, I had some problems with formatting, especially when the document became too long. I have not yet experienced such issues in Word 2013, and I hope I do not. Word 2013 is a very fine word processor. I tried to use alternatives and none of them provided a similar experience. I like WordPerfect's stream formatting approach, but WordPerfect is dated now. LibreOffice Writer is better than it was in the past, but the interface is still awkward and compatibility with Word is not 100%. I could use Apple Pages, but Apple cannot even provide the most basic features footnotes cannot even split in two pages, which is something unacceptable for any reasonable word processor. Word seems to be the only one that has it all probably because Microsoft developed it over the years, but the fact is that it became a great program.
Now, two things bother me.
The first is that Apple is not willing to provide a good word processor as a replacement to Word. Pages is fine, but it could have more features. How difficult can it be to make footnotes split in two? Or to allow cross-references? Just hire a team of 10 programmers and make iWork better. It is not that expensive, especially for a company with so many billion dollars in the bank. Even LibreOffice Writer has that.
The second thing is that Microsoft Word for Mac is so crap. Word for Mac has the features, but its interface is awkward. In addition, it is a memory hog, it crashes and its language options are broken (I cannot use grammar check in Word, for instance).
I am counting on Microsoft to make a better Word for Mac. It does not have to be the same as Word for Windows, it just has to be a stable piece of software. I cannot count on Apple as it has not updated Pages in years (feature-wise) and it will not do it now.
As for using a PC instead of a Mac, I have tried that. After buying my first Mac in 2008 (a white 13-inch MacBook), I bought a Windows laptop in 2011. It was a 15.6-inch high-end machine with a full HD screen. However, the chassis was plastic crap; the keyboard felt cheap; the trackpad was crappy; it got very hot all the time; and it had several problems and internal parts seemed to be loose. My 15-inch retina MacBook Pro is a great machine, and it feels great, with a good keyboard and trackpad. And the screen is 16:10, which is something I cannot find in the Windows world anymore. And Windows laptops for sale here in Brazil are so crappy... OS X is also good; scrolling with the trackpad is so smooth! However, I have to deal with this lack of good software for Mac.