I am gonna say... Phones!!! Cause PPSSPP (PsP emulator for Android/iOS/Windows/Mac/Linux) Finally has playable frame rates to play nearly all the psp games in glorious "HD" on my Galaxy S4... Its about time too!!! FFVII Crisis Core in "HD" is Jizz Worthy
But in realistic terms, wiiU/3ds
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850