Also, we've seen in Dark Empire what happens when someone tries to choke out Boba Fett. He promptly responds by unleashing ALL the firepower. Pretty sure it'd be enough to break the GI's concentration on the Force choke.
That said, this would be a pretty fun match up. Boba Fett has quite the arsenal, but he's still going up against a skilled Jedi Knight-level threat. I can genuinely see this going either way. The Inquisitor has shown a willingness to abuse his Force powers, using TK once or twice in each of his on-screen appearances (aside from Ezra's vision). And the spinning feature on his lightsaber, as shown by both him and the Seventh Sister, makes for an excellent shield against incoming blaster fire, which would make it exceedingly difficult for Fett to make any headway against the Inquisitor with his go-to weaponry. He'd have to rely on his grapple cable and flamethrower pretty heavily here to pull off the victory.