"Best" version of Linux is also a very difficult question to ask.
The *buntu family seems to be pushed a lot for new users. I personally haven't liked their builds (visually), but for much the same reasons as I don't like newer Windowses, so you can probably ignore my feelings on that. (Also, 'buntus are very varied, I know, across their range. I think Zorin is supposed to be a good transitional one.)
Mint is touted as a beginner option (again, different - excuse the pun - 'flavours')
Elementary is Mac-like (apparently), so given the second of your couple of questions[1].
You maybe could try out something like Puppy/DamnSmall on a removal media without even messing with your Windows boot (but they tend to not be very Windows/Mac-like).
Arch/CentOs/Suse might be at the technical end to install and use, but I think there are versions of each made for "default, minimal clicking" installs.
(I'm using a slightly old Fedora distro, right now, on one of my machines. I got it sort of how I liked it, again, after the last major upgrade I did royally messed around with the simplicity and not too much style-over-substance of the install, and I didn't want to risk that again so it's slightly more archaic than it should be, apart from the occasional necessary manual updates. Don't try to be like me, though.)
[1] Which I don't know the answer to, but probably not (anywhere near as easy than if you instead go get a Mac-like Linux/reskin, anyway).