Ignoring 'problems' of sound, I'd definitely prefer to see the next Monkey Island game made by Telltale.
Why? Well, they're enthused. They're excited about the properties of making adventures games, games where you point, click and laugh. Lucas Arts has proved in later years that they no longer have any real interest in making those games, and thus, lack the staff for it. Telltale is concentrated on making Adventure games, it's the reason for the company's existence, and so far, they've done nothing but stellar work considering what they're working with.
Also, the episodic, online sales format sits well with me now - not so much when I didn't have broadband, but now it's preferable to waiting for my games store to get it in (or even for it to be released in Australia).