You'd might think this question is probably the same as "what is your favourite Species/race in zelda" but it isn't for me. Goron's are my favourite species but they have been in alot of games and although i want them to return in zelda wii u I would be happier if the mogma returned. Skyward sword does get some hate but it did bring new races to the franchise like the kikwi, ancient robots, parella and mogma. The mogma were the best IMO, they were quirky, funny, sly and a bit eccentric so i really liked them. Of course I am not talking about the enemy races that you fight like moblins, poes, keese, undead etc . I am talking about the races which you can interact with. Also i won't include hylian in the  poll because that is the players (Link's) race.

Deku  gerudo  gorons  kokiri                                                        

minish     koroks   mogma    rito                                                

sheikah    twili zora 

I actually hated the Mogma. Personally I'd like a story based on the Sheikah. Lots of potential there.

sheikah

The mogmas were sort of annoying :p

I don't really have one I specifically would like to see return, but Rito would be pretty neat

Hate is a strong word, why did you hate them?

I would love a Minish return, but I don't see it happening.

Me too. They have so much potential...

I want to see Zora return, as they were depicted in Ocarina and Majoras.Such an awesome race!

I'd like to see the Zoras come back with their OoT/MM design, they looked so derpy in ALBW =P

Also, I know the Loftwing probably doesn't count, but I'd really like to see it again. Just imagine being able to fly over Hyrule, how cool would that be?

Zora, although I'm happy for Nintendo to save their return for a more realistic looking Zelda.