I did not include Rachel or Finn because they are the two leads of the Glee Club :)

They can use him more, he has great voice not less than finn who almost sings all the male version of the songs

or Tina.

her voice is amazing and also she hasn't had acting to do, she needs a better storyline

artie and tina deffo!they also dont use quinn and puck in many songs and matt and mike have barely said a word all series!

they should also use more brittany shes one of my fave characters!

I feel like Tina deserves to have one of the more intriguing story lines. Hers have either been quick and dirty or smashed in between Artie - not that he gets much use, either.

Do you mean singing or character wise/more storylines/potential?
I'd pick Artie on both accounts though. :P

It's defiantly Mercedes because I haven't heard anything about her side story but she has an amazing voice!!!

After Quinn is pregnant is fair to tell she is useless ! I used to love Quinn Fabray, Now is just so boring and sick of the "Bad girl gone good"

I love Artie and he could use a few more solos but Tina's only had one so my vote had to go to her! Although if she was on here, I would definitely vote for Brittany!

Tina, Artie and Quinn