let's start.

> Emulators

http://emulation.gametechwiki.com/index.php/Main_Page

emulate anything from the nes too the wii u. the PlayStation 1 to PlayStation 3 (Rpcs3) and the xbox (xqemu) to 360 (xenia) also hsndhelds from the psp to the ds to the 3ds (citra) and they will all only get better. rpcs3, xenia, citra and cemu is getting better and more improved everyday.

the wiki will tell you everything you need and emucr.com will give you the latest builds of your desired emulator as they come out. let's be clear here, you will be able too play EVERY SINGLE GAME on your pc in just a few years hell I heard the rpcs3 devs are also going to tackle vita emulation once they get rpcs3 in a presentable state (which is quickly getting to that point if you say up with the newest builds and look for recent videos here on youtube for people testing them)

frankly I am appalled that you put up a fake 360 emulator here, next time you should do more research.

> mods

mods can make a game that had a poor port into a okay port (if a game has a 30fps lock, people can sometimes bring it up to 60, texture mods,  etc.)

> native backwards compatibility

all the way from windows 10 to dos, if you're willing to do enough research, you can run almost any old pc game on your windows based pc.

> more ports of console games

as pc gaming grows, more and more developers that never made a game or ported anything to pc are porting games too pc (if some are shit, you always have a possibility too mod it unless you ABSOLUTLEY cannot.