Top 100 finaly!

For the first time since i started in the end of November, i finished top 100 in Squad Arena. My team right now is Sid 7*, JC 7*, Lumi 7*, Kylo 6* Dooku/QGJ both 5*. Everyone is lvl 70 and maxed gear (exept the purple blowdryers). I really think that i need a new toon to take JCs place because he is not that good on this level. Who should i get? I really belive that GS will dissapear from the PvP teams once the level gap is increased. Will Yoda be a good add to my squad?

What i have to chose from:
https://scontent-arn2-1.xx.fbcdn.net/hphotos-xtp1/v/t35.0-12/12787362_1292076007475669_755574659_o.jpg?oh=833f916fcfd26577e9a8653712e5e55d&oe=56CFA67D

Thanks!