I got AC3 for Wii U but I got ACIV for PS4. Why, while the Wii U port of AC3 was solid, the DLC support was substandard, and the game itself was average. ACIV on PS4 was the best port, it had additional content, and the game was awesome. The first AC game I truly enjoyed.
Would I have bought AC: Rogue for Wii U? Yes. I'm playing my last gen consoles less and less. My 360 is basically being used for USFIV and I'm holding on to my PS3 just for Tales games at the moment. More importantly, Rogue seems to be a lot like ACIV. Ah well, I'll have plenty of fun with Bayonetta 2. All is not lost.