Thats b/c Jaden deck is combo based and doesnt have an equip thats +700 they start with every turn lol. They both have an 18 beatstick but the equip in the other is too strong to get over regularly, thats why you're winning with it if they dont get the fusion out
The deck building is beyond terrible. However playing 2 Blazeman and the fusion fire HERO's is really nice if used correctly. I jammed Thunder Dragons since I can't see a reason why not to have them on a deck that uses 3 Poly. Also, add the usual brainless Super Rush and Money-Wall combo to get a deck that can consistently win on turn 4. You may still lose to somemoney-decks or Toon Boredom tough.