Since 2K14 isn't on Wii, you must use a base game that the Dolphin community has "modded" to look like 2K14. WWE '13 or WWE SmackDown vs. Raw 2011 .
Enable "Load Custom Textures" in the Graphics > Advanced tab to see the 2K14 mods. Official Alternatives for WWE 2K14 on PC Wwe 2k14 Dolphin Emulator Download Pc
Another option, though it may require a more powerful PC to handle the 360 architecture smoothly. WWE Games Officially Supported by Dolphin Since 2K14 isn't on Wii, you must use