I think team 2 would win.
Johun and Kanan seem to be on par with each other. They are both out of practice. I would give the edge to Johun though, mainly because like Neph said, he was a fully trained Jedi Knight.
Pg. 587-588 Rule of Two
Johun's training in lightsaber combat was limited to the strikes and parries of Form VI, Niman, the most balanced of all the styles. Colloquially known as the Diplomat's Form, Niman had no specific strengths or weaknesses. Its general versatility had served him well during the unpredictable grand melees of the Ruusan battlefields. But over the past decade he had made only the most basic efforts to maintain his skill with the blade. Instead he had focused his attention on developing diplomatic talents. Yet he was still a Jedi, and a formidable foe for anyone to face.
Sirak is probably above the inquisitor.
Pg. 139 Path of Destruction
There were rumors that Sirak had begun studying the ways of the dark side under Lord Qordis nearly twenty years ago, long before the Academy at Korriban had been resurrected.
Pg. 241 Path of Destruction
He had been invincible, untouchable--the top apprentice in every discipline.
Pg. 266 Path of Destruction
Staggering back, Bane was almost too distracted to see Sirak unleashing a bolt of crackling blue lightning at him. At the last second he twisted and caught the potentially lethal blast with the blade of his lightsaber, absorbing its energy.
Bane wasn't even paying attention to Sirak and he still managed to handle Sirak's lightning pretty easily. Of course, the Inquisitor is nowhere near Bane's level. I think Sirak has the edge against the inquisitor in sabers and force-powers.
The Inquisitor doesn't need to be Bane's level lol.
He has superior telekinetic showings and can ragdoll him. Sirak would lose any fight based on that.
Not sure about Johun vs. Kanan, but Sirak would get stomped by the Inquisitor's power.
Probably something like an even split or slight majority to team 2, Sirak could probably kill Kanan and The Inquisitor would stomp Johun. Johun got his ass kicked by a non force sensitive Twi'lek assassin.