in clone wars the series kitt fisto was deflecting rockets and heavy laser shots, as well as dismanteling a heavy duty droid. Maul took out the entire dark sun orginization as well as killed a guy just for trying to read his mind and i believe someone said he used force lightning too.
BUT the thing is that mandelor armour, it can withstand lightsaber attacks, and probably the lightning but then again it might make a good conductor for electricuting both of them. I can see how jango and boba can defeat low level jedi but i just cant see them beating very powerful ones like fisto and maul, maybe maul since you guys say that jango was beating obi won.