Neither handheld has me excited for next year, which is a shame because I own both.
I think Sony has the best exclusives for this year. In 2014 I thought PS4 had the weakest exclusive lineup, even though I enjoyed a few games a great deal, but this year looks fantastic, as does Wii U's lineup. X1 also has a very strong lineup, and the more I have thought about MS's games this year the closer I think they are.
I am looking forward to the following on each system:
PS4 - The Order, Bloodborne, Until Dawn, Ratchet & Clank, Tearaway Unfolded, Uncharted 4, Persona 5, and depending on their release year, Ys 8, Yakuza 5 and Wild.
Wii U - Kirby (a bit), Yoshi's Woolly World, Xenoblade X, Zelda U, Mario Maker, Splatoon, Devil's Third (a bit), Star Fox
X1 - Halo 5, Forza 6, Quantum Break (I think this may have slipped to 2016). Gears Trilogy and Banjo if announced. I don't think Scalebound will be 2015
Pretty good year for everyone I think