WaitWHAT said:
The PS2 simulator website [http://pcsx2.net/getting-started.html] recommends a minimum of a Pentium 4 or Athlon64, and even more sceptical users [http://forums.pcsx2.net/Thread-Sticky-Will-PCSX2-run-fast-on-my-computer] say that you need at least a dual-core athlon or opteron.
They're minimum specs in that they're the very lowest you can go just to get the thing running on a system - thing is, you won't get a satisfying experience out of it. I can tell you that from personal experience that it wasn't until I got my Phenom II X4 that I was able to get decent performance out of PCSX2; even back when I was on an Athlon X2 64 there was still a lot of buggering around with speedhacks and still dealt with general sound stuttering issues and graphical corruptions.
Problem is though that enjoyment is subjective. I don't mind fiddling around with speedhacks and getting a few hiccups here and there, but that's not the case with all users. Some demand absolute perfection with emulation, and you'll get folks who will say "there's still no good emulation for the N64" even though I've merrily used software like Project64 in the past and have personally had little problem with it. But then I must have a bit more leniency in regards to emulator accuracy than those aforementioned folks.
And that's one of the big problems that we boil down to here - that PS2 emulation is still in this questionable state even after years of development and two generational leaps of progression and you still need top-of-the-line hardware to get the most accurate emulation means that it's not a reliable option. It's one thing for these fan-made emulators to have issues and quirks with specific software, but another entirely for the actual corporations themselves to stumble over the same issues - they can't just tell the consumer "well it hiccups on sounds because lol emulation", they need it to "just work," since that's the whole point. Fans are going to be far less sympathetic to these issues with Microsoft and Sony than they would be to a group of fans working on their own little project.
WaitWHAT said:
And if someone has video after video showing that the XBOX 360 emulator works, you need more than some youtube comments and year-old comments on some threads to disprove video after video after video of the XBOX 360 simulator perfectly in action. Like seriously, all you've got is word of mouth (well, word of keyboard) that it doesn't work. It also doesn't help that many of your statments are provably false.
The burden of proof doesn't fall on me. Frankly, I already know there is no Xbox 360 emulator that you can download and just play games with. I already know that the scene for emulation of Microsoft consoles is near non-existent, which is why there's barely any emulation of the original Xbox, let alone the 360. You can try for yourself - go download those supposed emulators and give 'em a go. See if you can get a 360 ISO or disc running on them. Don't point me to some Youtube video that could easily be thrown together with a bit of video editing; try it out yourself.
As that FAQ I linked pointed out, you wont, because we're not even at a point where top-end PC hardware can handle the prospect of attempting true 360 emulation. Doesn't matter that the OP of the topic is from three years ago, that fact simply hasn't changed. The new consoles certainly don't have nearly the power to pull it off, which is why you wont see them using emulation to provide PS3/360 backwards compatibility. It's just not possible. Its why Sony was touting Gaikai as a feature to allow you to stream PS3 games online instead of playing them directly on the PS4 hardware through emulation.