Disclaimer: it can work if you level of heroes and skill same or not less than opponent. This is my personal opinion from my exp. of game.
Into:
Goenitz most favour character in this game, because he has 3 diff skill - range skill from the ground, capture, undercut. That's create multiple variation of gaming. No one in this game can has some skill - except Orochi (but w/o capture). That's why this is a 1st Hero.
My tier:
1. Orochi - use 3rd and 1st skill to keep distance. 2nd to break distance fast.
2. K - with 2nd skill can break distance fast. 3rd (capture) skill can also help in close range. Huge base attack can help to win. But low basic defence make this hero not universal and take additional attention.
3. Rugal - Undercut (3rd skill) can break the combo of Goenitz and can start his own combo
4. Takuma, Kyu, Iori and others who can combine 1st (range) and 3d (capture) skill. Very hard to keep distance with this heroes. Also basic stats very good. And skill can combine in multiple ways.
5. Shingo - slow, but with last update (break the shield with one-two shot) can change the game if opponent not skilled enough.
6. Maxima - always can capture and damage. Huge defence can also help. But sometimes animation is slow and if you miss combo - need long time to start new.
7. Athena - dangerous, but last update fixed the capture, so maybe no best option.
8. Shermi - I know, it quite controversial, but sometimes impossible to quit from capture.
Hard to play vs Goenitz:
All close range hero, who hasn't range skill.
Hope it help's for someone:)
Have a nice game!