SS3 Goku (GT) (Giant Ape) comes very close to SS3 Bardock on the rotation with SS3 Goku and Majin Vegeta, but his ATK is very low and the fact that he doesn’t have Experienced Fighters.
Average DPT
Teams
Average ATK
11,095,564
LR SS3 Goku
5,926,248
Majin Vegeta
4,381,370
Floater
Average ATK
SS3 Goku (GT)
787,946
The 33% ATK boost at start of turn for Majin Vegeta just isn’t enough to compensate for his lower ATK and the comparison is even less close on the rotation with LSS Broly.
SS2 Goku offers 4 Ki to SS3 Goku between his Passive and Shattering the Limit, but he has a lower ATK compared to SS3 Bardock, he doesn’t have Experienced Fighters and he offers a lower ATK boost on average. On the on the other rotation the comparison is closer, since LSS Broly gains enough Ki from his Passive and Prepared for Battle to use his 18+ Ki Super Attack, but SS3 Bardock is still a better option.
“Quick Considerations”
This is the difference between SS2 Goku and SS3 Bardock on the rotation with LSS Broly:
Average DPT
Teams
Average ATK
7,791,865
LSS Broly
4,510,339
SSB Vegeta
2,669,029
Floater
Average ATK
SS2 Goku
612,497
The two ATK stats of the floaters are on complete different levels, the added damage from LSS Broly 18+ Ki Super Attack just isn’t enough to make up for it.