Whom should I get

Pic above is for the special select stone and whom I'm thinking of getting but can't decide

Besides that, I have 1k 10th Anni coins so I can coin two units, whom should I get?

10 Anni Units I have:

69%: TEQ Vegito, AGL Gogeta, PHY SSJ2 Gohan,

55%: STR SSBE Vegeta, AGL SSJ3/4 Goku

I'm thinking of getting 10th Anni GoFrieza with 500 coins and then dupe one of the 10th Anni Units. Whom should I dupe?