I have asked here before and did not like my approach to it. So time to attempt Linux again. I have very little experince with Linux that. The first Distro I tried was Ubuntu cause it was common but seemed very intimidating for me to learn how to use it but eventually tried another distro called Manjaro i think it was called. Back then which was like 1 and a half years ago with Manjaro was very rough and a lot of it seemed missing. As with Ubuntu it was more complete but you had to use the Terminal so it was a bit of a hassle then I gave up Linux then I switched back to Windows. I tried gaming on it and many games that are from Windows are not support on Linux and Wine was a pain to use.
The things that I want from Linux: Need to have a simple experience like Windows as possible but learn how to use the Terminal more Need help with League of Legends running on Linux with Wine and some other games
and also learning how to dual boot Linux and windows
For some of your games it might just be easier to run a dual boot and switch when needed, while running the linux version when you can.
As for not using the terminal, you can probably avoid it for the most part once your system is set up the way you want. Software can be installed through the Software Centre, additional drivers are also available when you search for them in the HUD. I don't know of any good resources off the top of my head, but you will probably get more comfortable with the command line the more you use it. Cheat sheets are also handy.
Definitely start with Ubuntu and maybe experiment with the alternate Ubuntu distros like Kubuntu, Xubuntu, Lubuntu, and Ubuntu Gnome. Fedora might also be something you would want to look at as well.
Loads of guides for getting games like LOL to work under wine. eg http://forums.na.leagueoflegends.com/board/showthread.php?t=4232452 - a bit long winded for the most part. There is also playonlinux instead of wine. If you want widows'esque linux try Zorin OS - has a windows/gnome/mac desktop option + wine etc preinstalled. Is rock solid for the most part. Learning how to do the basics from the command line is pretty essential no matter what flavour of linux you choose.
You might want to give Xubuntu a try. The XFCE desktop used in Xubuntu is really simple, and the rest is the same as in Ubuntu, so all the guides etc. still work. As with games on Linux, you should give playonlinux a try. You can install it over the Ubuntu software center, so no terminal experience required ;) Learning to use a shell on Linux(The program that runs on a terminal) is still really useful. Once you get used to it, you don't want to miss it.
I know this is old and don't know where you're at with Linux but for dual booting I made a video on my YouTube channel and I'm currently making a series on how to switch to Linux:
If you're thinking of avoiding the Linux terminal I wish you good luck! There are some tasks that you can do without it but if you ask for help people are going to tell you to use terminal. I have to say it looks more intimidating than it really is though. Take this command for example: $ sudo apt-get install gimp broken down this means the following: sudo -> stands for super user do, it tells the computer that you're allowing admin privileges to take place apt-get -> in Ubuntu this is the package manger, this tells the computer to run your package manager program install -> tells your package manager you want to install something gimp -> tells your package manager what you want to install
it seems intimidating but I think it can be pretty easy if you give it a chance. I agree with everyone above though, start with Ubuntu, it is the easiest to learn. If you're a gamer, you'll want to learn Linux because it is a free and open platform, if adopted for gaming it will mean that when you build a new PC in the future, you won't have to pay for your operating system.