>>532284919
What's that white stuff all over Lunas swinsuit?

>>715456378
I thought she was cute at first but she's been outclassed. The anime loading screen pic of her is cute though.

>>530446424
They are both roughly the same for xp. Just play the one that gives you other rewards you need.

That being said, you are way more likely to get try-hards in Sigma so if you're going to leech you should do it there.