[CybermanWorf]

I would go for Blade in this one for this battle.

As swordsmanship skills go Blade is significantly better than Gaim.

With all the undead cards powers just give him a huge advantage over the amount of tech kouta as Kenzaki has stuff like lighting effects and super speed.

Kouta has enough to cause a tough battle but I think blade would win overall in this one.

Also good choice about using only their basic rider gear, endgame Blade and Gaim would have been a hella different battle if that were the case.