For me Linux is about customization, from windows7, Microsoft is removing a lot of things and trying to force a streamlined way of use it. I hate it.on Linux you have a much more control of your workflow, doing things in your wa, also there is a sense of community, wikies work, tutorials usually are better.

But, if you are super confortable with windows I will suggest you to not change. There is no reason for that, only if you are curious, but none system will be better that one you already like in every aspect and you need nothing.

For a beginners a distro is not even the most important thing, but the desktop environment, i can recommend endevourOS, manjaro, and mint, i the order i like most, and for the DE i highly recommend Cinnamon or KDE since you clearly don't feel the need to change your desktop so much, Mate is also a greatDE but it is just a little bit uglier but has a good performance if you have a less potent machine