FF1 - PSX/GBA
FF2 - PSP
FF3 - NES (emulated)
FF4 - PSX/GBA/PSP
FF5 - GBA
FF6 - PSX/SNES
FF7-10 - PSX/PS2
I really liked FF4 Complete on the PSP, it would have been cool to have seen at least FF3 and FF5 done in that style as well. I didn't like the looks of the 3D remakes.
As for Dragon Quest... I haven't beaten any of them.

