I like 5e and Palladium RIFTS. I think anyone can GM - it's really just a matter of wanting it and taking the leap. All you need is the drive to put in a little work and you can run a great game.
When I play, I enjoy the strategy of combat! Fighter is the best D&D class and if you don't agree you can fight me, but if you're not a fighter I'm probably gonna win, sorry. =)
I don't believe in pirating books. If you play the game, you should support the hobby. It can be hard enough for these publishers to make a dollar, please support your favorite game publishers by buying their books.