I have a Samsung Galaxy S4. It has a quad core processor, 2GBs of RAM, 1080P screen and works with PS3 Bluetooth. It's pretty much as good as it gets right now.
I have an LG Optimus G with pretty much the same specs.
In my opinion, these newer Androids offer by far the best mix between power and flexibility. I love that I can play GBA, SNES, N64, PSX and many more emulators all on one device. Add a PS3 or Wii Classic Pro controller, or whatever else you can get connected, and it's a great experience.